Gemstone and method of cutting the same

Abstract

The gemstone includes a crown, a pavilion, and a girdle disposed between the crown and the pavilion. The surface of the gemstone is generally divided into sets of interlocking facets disposed at various angles. The set of facets including the surface of the crown generally includes a star facet, an upper principal crown facet, an upper intermediate crown facet, a lower principal crown facet, a lower intermediate crown facet, and an upper girdle facet. The upper girdle facet generally adjoins an upper edge of the girdle. The set of facets including the surface of the pavilion includes a pavilion point adjacent facet, a lower candle facet, a lower principal pavilion facet, an upper candle facet, an upper principal pavilion facet, and a lower girdle facet. The lower girdle facet generally adjoins a lower edge of the girdle.

Description

[0001] Cross-reference to related applications

[0002] This application claims priority and benefit to U.S. Provisional Patent Application No. 62 / 673,683, filed May 18, 2018, which is incorporated herein by reference in its entirety. Technical Field

[0003] This disclosure relates to gemstones, and more specifically, to patterns on gemstone facets. Background Technology

[0004] Some gemstones are designed / cut to produce the desired amount of brightness or "sparkle" by forming or cutting multiple individual facets on the gemstone's outer surface. Other gemstones are designed / cut to enhance their natural color (e.g., yellow, pink, etc.). However, it is difficult to produce gemstones with a facet layout of specific angles that both produce the desired amount of brightness and enhance the gemstone's natural color.

[0005] The present invention aims to solve these problems and meet other needs. Summary of the Invention

[0006] According to some embodiments of the present invention, a gemstone includes a crown forming the upper part of the gemstone. The crown surface includes a platform, a plurality of star facets, a plurality of upper main crown facets, a plurality of upper intermediate crown facets, a plurality of lower main crown facets, a plurality of lower intermediate crown facets, and a plurality of upper girdle facets. The platform forms a generally horizontal upper surface of the crown. Each of the plurality of star facets is disposed adjacent to and abuts the platform. Each of the plurality of upper main crown facets is disposed between two of the plurality of star facets. Each of the plurality of upper intermediate crown facets is disposed between two of the plurality of upper main crown facets. Each of the plurality of lower main crown facets is disposed adjacent to and abuts one of the plurality of upper intermediate crown facets. Each of the plurality of lower intermediate crown facets is disposed adjacent to and abuts one of the plurality of upper main crown facets, and is disposed between two of the plurality of lower main crown facets. The plurality of upper girdle facets are formed as pairs of adjacent upper girdle facets. Each pair of adjacent upper girdle facets is positioned between two of the plurality of lower crown facets. The gemstone also includes a pavilion forming the lower part of the gemstone. The surface of the pavilion includes a plurality of pavilion apex facets, a plurality of lower main pavilion facets, a plurality of lower candle facets, a plurality of upper main pavilion facets, a plurality of upper candle facets, and a plurality of lower girdle facets. The plurality of pavilion apex facets form the lower point of the pavilion. Each of the plurality of lower main pavilion facets is adjacent to and abuts the edge of one of the plurality of pavilion apex facets. The upper part of each of the plurality of lower candle facets is generally positioned between two of the plurality of lower main pavilion facets, and the lower part of each of the plurality of lower candle facets is generally positioned between two of the plurality of pavilion apex facets. Each of the plurality of upper main pavilion facets is adjacent to and abuts the edge of one of the plurality of lower main pavilion facets. Each of the plurality of upper candle facets is positioned adjacent to and abuts the edge of one of the plurality of lower candle facets. The lower part of each of the plurality of upper candle facets is generally positioned between two of the plurality of upper main pavilion facets. The plurality of lower girdle facets are formed in pairs of adjacent lower girdle facets. Each pair of adjacent lower girdle facets is generally positioned between two of the plurality of upper pavilion facets. Each pair of adjacent lower girdle facets has an upper portion generally positioned between the corresponding one of the plurality of upper canopy facets. The gemstone also includes a girdle surrounding the gemstone between the crown and pavilion. Each of the plurality of upper girdle facets is positioned adjacent to and abuts the upper edge of the girdle. Each of the plurality of lower girdle facets is positioned adjacent to and abuts the lower edge of the girdle.

[0007] According to some embodiments of the present invention, a gemstone includes a crown forming the upper part of the gemstone. The crown surface includes a platform, a plurality of platform facets, a plurality of star facets, a plurality of upper main crown facets, a plurality of upper intermediate crown facets, a plurality of lower main crown facets, a plurality of lower intermediate crown facets, and a plurality of upper girdle facets. The platform forms a generally horizontal upper surface of the crown. Each of the plurality of star facets is disposed adjacent to and abuts the platform. Each of the plurality of upper main crown facets is disposed between two of the plurality of star facets. Each of the plurality of upper intermediate crown facets is disposed between two of the plurality of upper main crown facets. Each of the plurality of lower main crown facets is disposed adjacent to and abuts one of the plurality of upper intermediate crown facets. Each of the plurality of lower intermediate crown facets is disposed adjacent to and abuts one of the plurality of upper main crown facets, and is disposed between two of the plurality of lower main crown facets. The plurality of upper girdle facets are formed as pairs of adjacent upper girdle facets. Each pair of adjacent upper waist circumference facets is positioned between two of the plurality of lower main crown facets.

[0008] According to some embodiments of the present invention, a gemstone includes a pavilion forming the lower part of the gemstone. The surface of the pavilion includes a plurality of adjacent pavilion apex facets, a plurality of lower main pavilion facets, a plurality of lower candle facets, a plurality of upper main pavilion facets, a plurality of upper candle facets, and a plurality of lower waist facets. The adjacent pavilion apex facets form the lower point of the pavilion. Each of the plurality of lower main pavilion facets is disposed adjacent to and abuts the edge of one of the plurality of adjacent pavilion apex facets. The upper portion of each of the plurality of lower candle facets is generally disposed between two of the plurality of lower main pavilion facets, and the lower portion of each of the plurality of lower candle facets is generally disposed between two of the plurality of adjacent pavilion apex facets. Each of the plurality of upper main pavilion facets is disposed adjacent to and abuts the edge of one of the plurality of lower main pavilion facets. Each of the plurality of upper candle facets is disposed adjacent to and abuts the edge of one of the plurality of lower candle facets. The lower portion of each of the plurality of upper candle facets is generally disposed between two of the plurality of upper main pavilion facets. The plurality of lower waist facets are formed as pairs of adjacent lower waist facets. Each pair of adjacent lower waist sculpted surfaces is generally positioned between two of the plurality of upper main pavilion sculpted surfaces. Each pair of adjacent lower waist sculpted surfaces has an upper portion of a corresponding one of the plurality of upper candle sculpted surfaces, generally positioned between them.

[0009] According to some embodiments of the present invention, the gemstone includes a crown forming the upper part of the gemstone. The surface of the crown includes a platform having a generally octagonal shape, a plurality of star facets having a generally triangular shape, a plurality of upper main crown facets having a generally pentagonal shape, a plurality of upper intermediate crown facets having a generally triangular shape, a plurality of lower main crown facets having a generally pentagonal shape, a plurality of lower intermediate crown facets having a generally triangular shape, and a plurality of upper girdle facets having a generally triangular shape. The platform forms a generally horizontal upper surface of the crown. Each of the plurality of star facets is disposed adjacent to and abuts the platform. Each of the plurality of upper main crown facets is disposed between two of the plurality of star facets. Each of the plurality of upper intermediate crown facets is disposed between two of the plurality of upper main crown facets. Each of the plurality of lower main crown facets is disposed adjacent to and abuts one of the plurality of upper intermediate crown facets. Each of the plurality of lower central crown facets is positioned adjacent to and abutting one of the plurality of upper main crown facets, and is positioned between two of the plurality of lower main crown facets. The plurality of upper girdle facets are formed as pairs of adjacent upper girdle facets. Each pair of adjacent upper girdle facets is positioned between two of the plurality of lower main crown facets. The gemstone also includes a pavilion forming the lower part of the gemstone. The surface of the pavilion includes: a plurality of pavilion apex facets forming the lower point of the pavilion and having a generally pentagonal shape with a flat edge opposite the lower point of the pavilion; a plurality of lower main pavilion facets having a generally trapezoidal shape; a plurality of lower candle facets having a generally pentagonal shape; a plurality of upper main pavilion facets having a generally pentagonal shape; a plurality of upper candle facets having a generally pentagonal shape; and a plurality of lower girdle facets having four edges. Each of the plurality of lower main pavilion facets is positioned adjacent to and abutting an edge of one of the plurality of pavilion apex facets. The upper portion of each of the plurality of lower crown facets is generally positioned between two of the plurality of lower pavilion facets, and the lower portion of each of the plurality of lower crown facets is generally positioned between two of the plurality of adjacent pavilion facets. Each of the plurality of upper pavilion facets is positioned adjacent to and abuts the edge of one of the plurality of lower pavilion facets. Each of the plurality of upper crown facets is positioned adjacent to and abuts the edge of one of the plurality of lower crown facets. The lower portion of each of the plurality of upper crown facets is generally positioned between two of the plurality of upper pavilion facets. The plurality of lower waist facets are formed as pairs of adjacent lower waist facets. Each pair of adjacent lower waist facets is generally positioned between two of the plurality of upper pavilion facets. Each pair of adjacent lower waist facets has an upper portion generally positioned therebetween, the corresponding one of the plurality of upper crown facets. The gemstone also includes a girdle located between the crown and the pavilion and surrounding the gemstone. Each of the plurality of upper waist facets is positioned adjacent to and abuts the upper edge of the girdle. Each of the plurality of lower waistline facets is configured to be adjacent to and adjacent to the lower edge of the waistline.

[0010] According to some embodiments of this disclosure, the gemstone includes a crown forming the upper part of the gemstone, a pavilion forming the lower part of the gemstone, and a girdle located between the crown and the pavilion and surrounding the gemstone. The gemstone has a top depth percentage between about 25% and about 35% and a bottom depth percentage between about 50% and about 60%.

[0011] According to some embodiments of this disclosure, the gemstone includes a crown forming the upper part of the gemstone, a pavilion forming the lower part of the gemstone, and a girdle located between the crown and the pavilion and surrounding the gemstone. The total depth percentage of the gemstone is between about 86% and about 91%.

[0012] According to some embodiments of the present invention, the gemstone includes a crown forming the upper part of the gemstone and a pavilion forming the lower part of the gemstone. The surface of the crown includes a first plurality of facets, and the surface of the pavilion includes a second plurality of facets. Each of the first plurality of facets is disposed at an angle between about 22° and about 55.5° relative to the upper surface of the gemstone. Each of the second plurality of facets is disposed at an angle between about 38.5° and about 60° relative to the upper surface of the gemstone.

[0013] Given the detailed description of various embodiments and / or implementations with reference to the accompanying drawings, the foregoing and additional aspects and implementations of this disclosure will be apparent to those skilled in the art, and a brief description of the drawings is provided below. Attached Figure Description

[0014] The foregoing and other advantages of this disclosure will become apparent from reading the following detailed description and referring to the accompanying drawings.

[0015] Figure 1 This is a front view of a gemstone according to some embodiments of this disclosure;

[0016] Figure 2 This is based on some embodiments of the present disclosure. Figure 1 A top view of the gemstone;

[0017] Figure 3 This is based on some embodiments of the present disclosure. Figure 1 A bottom view of the gemstone;

[0018] Figure 4A This is a view taken from a downward angle according to some embodiments of the present invention. Figure 1 A three-dimensional image of the gemstone;

[0019] Figure 4B This is an upward view based on some embodiments of the present disclosure. Figure 1 A three-dimensional image of the gemstone;

[0020] Figure 5AThe formation of some embodiments according to this disclosure is shown. Figure 1 The first step in the method of crowning the gemstone;

[0021] Figure 5B The formation of some embodiments according to this disclosure is shown. Figure 1 The second step in the method of crowning the gemstone;

[0022] Figure 5C The formation of some embodiments according to this disclosure is shown. Figure 1 The third step in the method of crowning the gemstone;

[0023] Figure 5D The formation of some embodiments according to this disclosure is shown. Figure 1 The fourth step in the method of crowning the gemstone;

[0024] Figure 5E The formation of some embodiments according to this disclosure is shown. Figure 1 The fifth step in the method of crowning the gemstone;

[0025] Figure 5F The formation of some embodiments according to this disclosure is shown. Figure 1 The sixth step in the method of crowning the gemstone;

[0026] Figure 6A The formation of some embodiments according to this disclosure is shown. Figure 1 The first step in the method of the pavilion section of the gemstone;

[0027] Figure 6B The formation of some embodiments according to this disclosure is shown. Figure 1 The second step of the method for the pavilion section of the gemstone;

[0028] Figure 6C The formation of some embodiments according to this disclosure is shown. Figure 1 The third step of the method for the pavilion section of the gemstone;

[0029] Figure 6D The formation of some embodiments according to this disclosure is shown. Figure 1 The fourth step of the method for the pavilion section of the gemstone;

[0030] Figure 6E The formation of some embodiments according to this disclosure is shown. Figure 1 The fifth step of the method for the pavilion section of the gemstone; and

[0031] Figure 6F The formation of some embodiments according to this disclosure is shown. Figure 1 The sixth step of the method for the pavilion section of the gemstone.

[0032] While this disclosure is directed to various modifications and alternatives, specific implementations and methods are illustrated by way of example in the accompanying drawings and will be described in detail herein. However, it should be understood that this disclosure is not intended to be limited to the specific forms disclosed. Rather, this disclosure is intended to cover all modifications, equivalents, and alternatives falling within the spirit and scope of this disclosure as defined by the appended claims. Detailed Implementation

[0033] Reference Figure 1 The figure shows a front view of an embodiment of the gemstone 1. The gemstone 1 is generally divided into a crown 10 located at the upper part of the gemstone 1, a pavilion 30 located at the lower part of the gemstone 1, and a waist 50 generally disposed between the crown 10 and the pavilion 30. The waist 50 generally surrounds the entire circumference of the gemstone 1. The crown 10 typically has a flat top surface called a platform (e.g., Figure 2 (As shown). Gem 1 may terminate at the lower part of the pavilion at 30 as shown. Figure 1 Point 31, as shown, may terminate at a flat facet called a pavilion tip. Gemstone 1 is typically a precious gemstone, such as, but not limited to, diamonds, rubies, emeralds, sapphires, or pearls. Gemstone 1 may also be a synthetic material, such as cubic zirconia. More broadly, gemstone 1 may include any material capable of being cut, such as precious or non-precious gemstones, cubic zirconia, ceramics, metals, plastics, wood, etc.

[0034] The dimensional characteristics of gemstone 1 are based on its width. The width of gemstone 1 can also be expressed as the diameter of its girth 50. Gemstone 1 has a percentage of its table, which is a measure of the width or diameter of its table. The table can be formed in various shapes, and thus the measurement of its width can vary. In one embodiment, the table is a circle, and thus the diameter of the circle is used to represent the percentage of the table of gemstone 1. In another embodiment, the table is an octagon, and the distance between opposite edges of the octagon or between opposite vertices of the octagon is used to represent the percentage of the table. The percentage of the table is generally expressed as the width of the table 1 divided by the width of gemstone 1. In one embodiment, the percentage of the table is between about 33% and about 36%. In another embodiment, the percentage of the table is between about 30% and about 36%. In yet another embodiment, the percentage of the table is between about 21% and about 40%.

[0035] The top depth percentage of gemstone 1 is a measure of the height of the crown 10 of gemstone 1. The top depth percentage is typically expressed as the height of the crown 10 divided by the width of gemstone 1. In one embodiment, the top depth percentage is between about 27% and about 31%. In another embodiment, the top depth percentage is between about 25% and about 35%.

[0036] The bottom depth percentage of gemstone 1 is a measure of the total height of the pavilion 30 of gemstone 1. The bottom depth percentage is typically expressed as the height of the pavilion 30 divided by the width of gemstone 1. In one embodiment, the bottom depth percentage is between approximately 53% and approximately 56%. In another embodiment, the bottom depth percentage is between approximately 50% and approximately 60%.

[0037] Gemstone 1 has a waist thickness percentage, which is a measure of the total height of the waist 50 of gemstone 1. The waist thickness percentage is typically expressed as the height of the waist 50 divided by the width of gemstone 1. In one embodiment, the waist thickness percentage is between about 4.5% and about 6%. In another embodiment, the waist thickness percentage is between about 3% and about 8%. In yet another embodiment, the waist thickness percentage is between about 2% and about 10%.

[0038] The total depth percentage of gemstone 1 is a measure of the total height of gemstone 1. The total depth percentage is typically expressed as the height of gemstone 1 divided by the width of gemstone 1. The total depth percentage can also be expressed as the sum of the top depth percentage, the bottom depth percentage, and the waist thickness percentage. In one embodiment, the total depth percentage is between about 86% and about 90.5%. In another embodiment, the total depth percentage is between about 80% and about 95%. In a further embodiment, the total depth percentage is between about 86% and about 91%.

[0039] See again Figure 1 The surface of gemstone 1 is typically divided into multiple sets of interlocking facets arranged at various angles. The facet group including the crown 10 typically includes a star facet 14, an upper main crown facet 16, an upper middle crown facet 18, a lower main crown facet 20, a lower middle crown facet 22, and an upper girdle facet 24. The upper girdle facet 24 typically adjoins the upper edge of the girdle 50. The facet group including the pavilion 30 includes a pavilion tip adjacent facet 32, a lower candle facet 34, a lower main pavilion facet 36, an upper candle facet 38, an upper main pavilion facet 40, and a lower girdle facet 42. The lower girdle facet 42 generally adjoins the lower edge of the girdle 50. In one embodiment, the girdle 50 is a continuous circular facet surrounding the entire gemstone 1. In another embodiment, the girdle 50 is divided into multiple sub-facets. In yet another embodiment, each sub-facet of the girdle 50 includes multiple individual facets. The upper edge of the waist 50 adjacent to the crown 10 may be generally straight or curved. The lower edge of the waist 50 adjacent to the pavilion 30 may be generally straight or curved.

[0040] Each facet of the crown 10 is set at an angle that can be measured relative to the horizontal plane defined by the table of the gemstone 1 (e.g., the top surface of the gemstone 1). Figure 1 As shown in the upper axis group, each of the facets of the crown 10 forms an angle θ relative to the horizontal plane defined by the table of the gemstone 1.C .like Figure 1 As shown, each facet of the crown 10 is set with an angle θ. C It is formed by rotating downwards in a clockwise direction from the horizontal plane defined by the platform.

[0041] In one embodiment, the angle of the star facet 14 is approximately 26°. In another embodiment, the angle of the star facet 14 is between approximately 25° and approximately 27°. In yet another embodiment, the angle of the star facet 14 is between approximately 22° and approximately 30°.

[0042] In one embodiment, the angle of the upper crown facet 16 is between about 32° and about 35°. In another embodiment, the angle of the upper crown facet 16 is between about 29° and about 38°.

[0043] In one embodiment, the angle of the upper central crown facet 18 is approximately 44°. In another embodiment, the angle of the upper central crown facet 18 is between approximately 43° and approximately 45°. In yet another embodiment, the angle of the upper central crown facet 18 is between approximately 40° and approximately 48°.

[0044] In one embodiment, the angle of the lower main crown facet 20 is approximately 47°. In another embodiment, the angle of the lower main crown facet 20 is between approximately 46° and approximately 48°. In yet another embodiment, the angle of the lower main crown facet 20 is between approximately 44° and approximately 50°.

[0045] In one embodiment, the angle of the lower central crown facet 22 is between about 36° and about 39°. In another embodiment, the angle of the lower central crown facet 22 is between about 34° and about 41°.

[0046] In one embodiment, the angle of the upper waist circumference surface 24 is approximately 52°. In another embodiment, the angle of the upper waist circumference surface 24 is between approximately 51° and approximately 53°. In yet another embodiment, the angle of the upper waist circumference surface 24 is between approximately 53.5° and approximately 55.5°. In still another embodiment, the angle of the upper waist circumference surface 24 is between approximately 49° and approximately 55°.

[0047] Each angle set in the facets of the pavilion 30 can also be measured relative to the horizontal plane defined by the table of the gemstone 1 (e.g., the top surface of the gemstone 1). Figure 1 As shown in the lower axis group, each facet of the pavilion 30 forms an angle θ relative to the horizontal plane defined by the table of the gemstone 1. P .like Figure 1 As shown, the angle θ set in each facet of the pavilion 10 P It is formed by rotating counterclockwise upwards from the horizontal plane defined by the platform.

[0048] In one embodiment, the angle between adjacent facets 32 of the pavilion apex is approximately 42°. In another embodiment, the angle between adjacent facets 32 of the pavilion apex is between approximately 41° and approximately 42°. In another embodiment, the angle between adjacent facets 32 of the pavilion apex is between approximately 39° and approximately 44°. In another embodiment, the angle between adjacent facets 32 of the pavilion apex is between approximately 40.7° and approximately 42.2°. In yet another embodiment, the angle between adjacent facets 32 of the pavilion apex is between approximately 38.5° and approximately 43°.

[0049] In one embodiment, the angle of the lower candle facet 34 is between about 44° and about 45°. In another embodiment, the angle of the lower candle facet 34 is between about 43° and about 46°. In another embodiment, the angle of the lower candle facet 34 is between about 42° and about 47°. In yet another embodiment, the angle of the lower candle facet 34 is between about 40° and about 50°.

[0050] In one embodiment, the angle of the lower main pavilion facet 36 is between approximately 45° and approximately 48°. In another embodiment, the angle of the lower main pavilion facet 36 is between approximately 43° and approximately 50°.

[0051] In one embodiment, the angle of the upper candle facet 38 is between about 48° and about 51°. In another embodiment, the angle of the upper candle facet 38 is between about 46° and about 53°.

[0052] In one embodiment, the angle of the upper main pavilion facet 40 is between approximately 50° and approximately 53°. In another embodiment, the angle of the upper main pavilion facet 40 is between approximately 45° and approximately 55°.

[0053] In one embodiment, the angle of the lower waist circumference surface 42 is between about 54.5° and about 57°. In another embodiment, the angle of the lower waist circumference surface 42 is between about 55° and about 58°. In yet another embodiment, the angle of the lower waist circumference surface 42 is between about 50° and about 60°.

[0054] Now for reference Figure 2 The image shows a top view of gem 1. (As shown...) Figure 2 As shown, the facets on the surface of the crown 10 share the edges and vertices where the facets intersect. The platform 12 is a generally horizontal surface with multiple edges and is located at the top of the crown 10. Figure 2 In the illustrated embodiment, the platform 12 may have a generally hexagonal shape. Other shapes for the platform 12 are also conceivable in other embodiments. Eight star-shaped facets 14 are arranged around the platform 12. Each star-shaped facet 14 has a generally triangular shape. The base of each star-shaped facet 14 is adjacent to one of the edges of the platform 12.

[0055] Eight upper main crown facets 16 are arranged between eight star facets 14 and adjacent to the vertices of the platform 12. Each upper main crown facet 16 has a generally pentagonal shape and is arranged between two star facets 14. A point of each upper main crown facet 16 is adjacent to the corresponding vertex of the platform 12.

[0056] Eight upper intermediate crown facets 18 are disposed between adjacent vertices of the upper main crown facets 16 and the star facets 14. Each upper intermediate crown facet 18 is disposed between two upper main crown facets 16 and has a generally triangular shape. A point of each of the upper intermediate crown facets 18 is adjacent to a vertex of the corresponding star facet 14. This vertex of each of the star facets 14 is approximately opposite to the base of each of the star facets 14 adjacent to an edge of the platform 12. The edge of each of the upper intermediate crown facets 18 opposite to a vertex of the adjacent star facet 14 is adjacent to the edge of the corresponding one of the eight lower main crown facets 20.

[0057] The eight lower main crown facets 20 are configured such that the edge of each lower main crown facet 20 is adjacent to the edge of a corresponding one of the upper intermediate crown facets 18. As shown, each lower main crown facet 20 has a generally pentagonal shape. Each lower main crown facet 20 has a first vertex adjacent to the vertex of a first adjacent lower main crown facet 20, and a second vertex adjacent to the vertex of a second adjacent lower main crown facet 20. Each of the lower main crown facets 20 has a third vertex adjacent to the upper edge of the waistline. This third vertex is opposite the edge of the lower main crown facet 20 adjacent to the edge of one of the upper intermediate crown facets 18.

[0058] Eight lower intermediate crown facets 22 are disposed between the lower main crown facet 20 and the upper main crown facet 16. Each lower intermediate crown facet 22 has a generally triangular shape. The first edge of each of the lower intermediate crown facets 22 is adjacent to the edge of the corresponding one of the upper main crown facets 16. This edge of each of the upper main crown facets 16 is approximately opposite to the point of each of the vertices of the adjacent platform 12 of each of the upper main crown facets 16. The second and third edges of each lower intermediate crown facet 22 are adjacent to the edges of the lower main crown facet 20 disposed on either side thereon.

[0059] Finally, 16 upper waistline facets 24 are disposed between the lower main crown facet 20 and the waistline 50. The upper waistline facets 24 have a generally triangular shape. The first edge of each upper waistline facet 24 is adjacent to the upper edge of the waistline 50, and may be flat or curved depending on the shape of the waistline 50. As shown, two upper waistline facets 24 are disposed between any two lower main crown facets 20. The second edge of each upper waistline facet 24 is adjacent to the edge of a single adjacent lower main crown facet 20. The third edge of each upper waistline facet 24 is adjacent to the edge of a single adjacent upper waistline facet 24.

[0060] Now for reference Figure 3 The figure shows a bottom view of gemstone 1, which shows the pavilion 30. Eight pavilion-pointed facets 32 are formed at the bottom of the pavilion 30. In some embodiments, the facets 32 adjacent to the pavilion points terminate at the pavilion points, which are horizontal surfaces forming the bottom of the pavilion 30. Figure 3 In the illustrated embodiment, each adjacent facet 32 ​​of the pavilion tip has a bottom point. The bottom points of each of the adjacent facets 32 of the pavilion tip together form the point 31 of the gemstone 1. In one embodiment, each adjacent facet 32 ​​of the pavilion tip has a generally pentagonal shape with a flat edge opposite the bottom point. In the illustrated embodiment, the bottom points of each of the adjacent facets 32 of the pavilion tip meet to form a single bottom point of the gemstone 1.

[0061] Eight lower facets 34 are formed on the surface of the pavilion section 30 and have a roughly pentagonal shape similar to the adjacent facet 32 ​​of the pavilion tip. The lower facets 34 extend upward from the adjacent facet 32 ​​of the pavilion tip toward the waist 50 (in Figure 3 (Displayed radially outward) and has a generally horizontal edge opposite the bottom point. At the bottom of each of the lower canopy facets 34, including the bottom point, a slot is cut between adjacent canopy facets 32. The remainder of each of the lower canopy facets 34 is slotted between adjacent lower main canopy facets 36.

[0062] Eight lower main pavilion facets 36 are formed, such that each lower main pavilion facet 36 is positioned between adjacent lower candle facets 34. Each of the lower main pavilion facets 36 has a generally trapezoidal shape, having an upper horizontal edge, a lower horizontal edge, and two inclined edges. As shown, the lower edge of each of the lower main flat-top facets 36 is adjacent to the edge of the corresponding pavilion tip facet 32 ​​opposite to point 31. Each of the two inclined edges of the lower main pavilion facets 36 is adjacent to the edge of the adjacent lower candle facet 34.

[0063] The pavilion section 30 also includes eight upper candelabra facets 38. Each of these upper candelabra facets 38 has a pentagonal shape similar to the adjacent candelabra facet 32 ​​and lower candelabra facet 34 of the pavilion tip. The upper candelabra facets 38 are generally smaller than the lower candelabra facets 34 and are oriented in opposite directions. Each upper candelabra facet 38 has an upper point extending upward toward the waist circumference 50 and a horizontal edge opposite the upper point. However, the upper point of each of the upper candelabra facets 38 does not contact the waist circumference 50 itself. The upper point is adjacent to a pair of adjacent lower waist circumference facets 42 and terminates before reaching the waist circumference 50. The horizontal edge of each of the upper candelabra facets 38 is adjacent to the horizontal edge of the corresponding one of the lower candelabra facets 34.

[0064] Eight upper main pavilion facets 40 are formed between the upper candle facets 38. Each upper main pavilion facet 40 is positioned between a pair of upper candle facets 38. The upper main pavilion facet 40 has a generally pentagonal shape, having a lower horizontal edge and extending upward to contact the upper point of the waist circumference 50. The lower horizontal edge of each of the upper main pavilion facets 40 is adjacent to the upper horizontal edge of the corresponding one of the lower main pavilion facets 36. The two side edges of each of the upper main pavilion facets 40 are adjacent to the edges of the adjacent upper candle facets 38.

[0065] Finally, 16 lower waist-shaped facets 42 are provided around the upper part of the pavilion section 30. Adjacent lower waist-shaped facets 42 are usually formed in pairs. Each pair of adjacent lower waist-shaped facets 42 is defined by one of the upper candle-shaped facets 38, two of the upper main pavilion facets 40, and the waist section 50 itself. Each individual lower waist-shaped facet 42 is defined by one of the upper candle-shaped facets 38, one of the upper main pavilion facets 40, an adjacent lower waist-shaped facet 42, and the waist section 50. Each of the lower waist-shaped facets 42 generally has four edges. The first edge of each lower waist-shaped facet 42 is adjacent to the lower edge of the waist section 50. The second edge of each lower waist-shaped facet 42 is adjacent to the edge of one of the upper main pavilion facets 40. The third edge of each lower waist-shaped facet 42 is adjacent to the edge of one of the upper candle-shaped facets 38. The fourth edge of each lower waist-shaped facet 42 is adjacent to the edge of the adjacent lower waist-shaped facet 42. As shown in the figure, the upper part of the upper candle facet 38 extends upward into the gap formed by the lower part of the adjacent lower waist facet 42.

[0066] Figure 4A A three-dimensional view of gemstone 1 at a downward angle is shown, while Figure 4B A perspective view of the gemstone 1 at an upward angle is shown. The accompanying diagram shows the base 12, star facet 14, upper main crown facet 16, upper middle crown facet 18, lower main crown facet 20, lower middle crown facet 22, upper girdle facet 24, pavilion tip adjacent facet 32, lower candle facet 34, lower main pavilion facet 36, upper candle facet 38, upper main pavilion facet 40, lower girdle facet 42, and girdle 50.

[0067] Now for reference Figures 5A to 5F The diagram illustrates the steps involved in forming the crown of a gemstone. Typically, gemstones can be formed from an uncut sample, which can have any shape. Figure 5AAs shown, the first step includes forming a table 102 and a first set of crown facets 104. In one embodiment, the width of the table 102 is formed to be between about 30% and about 36% of the total width of the gemstone. In another embodiment, the width of the table 102 is formed to be between about 21% and about 40% of the width of the gemstone. The first set of crown facets 104 is formed at an angle between about 46° and about 48°. In another embodiment, the first set of crown facets 104 may be formed at an angle between about 44° and about 50°. The angles of the first set of crown facets 104 and the angles of subsequent crown facets formed in subsequent steps are measured relative to the horizontal plane defined by the table 102, similar to... Figure 1 How to measure the angles of the completed crown facets. After this step, the crown of the gemstone includes a table 102 and a first set of crown facets 104, and has a generally trapezoidal cross section.

[0068] like Figure 5B As shown, the next step in forming the gemstone is to perform a second cut at a slightly shallower angle. This second cut divides the first set of crown facets 104 into a second set of crown facets 106 and a third set of crown facets 108. The second set of crown facets 106 generally includes the lower portion of the first set of crown facets 104, while the third set of crown facets 108 generally includes the upper portion of the first set of crown facets 104. In one embodiment, the third set of crown facets 108 is formed at an angle between approximately 43° and approximately 45°. In another embodiment, the third set of crown facets 108 is formed at an angle between approximately 41° and approximately 47°. The second set of crown facets 106 maintains approximately the same angle as the first set of crown facets 104.

[0069] Figure 5C The next step is shown. Here, a fourth set of crown facets 110 is formed on the crown of the gemstone. The fourth set of crown facets 110 is formed by carving pentagonal surfaces into portions of the second set of crown facets 106 and the third set of crown facets 108. Thus, the gemstone at this step has a fourth set of crown facets 110, a fifth set of crown facets 112, and a sixth set of crown facets 114. The fourth set of crown facets 110 is formed from the remainder of the second set of crown facets 106 and is formed at the same angle. The pentagonal surfaces form the fifth set of crown facets 112 and can be formed at an angle between approximately 32° and approximately 35°. In another embodiment, the fifth set of crown facets 112 is formed at an angle between approximately 30° and approximately 37°. The sixth set of crown facets 114 each has a generally triangular shape and is formed from the remainder of the third set of crown facets 108. Therefore, the sixth crown facet 114 is set at approximately the same angle as the third crown facet 108, between approximately 43° and approximately 45°, or between approximately 41° and approximately 47°. The sixth crown facet 114 will become the upper central crown facet in the final gemstone.

[0070] like Figure 5D As shown, the next step is to cut a triangular portion from the fifth set of crown facets 112. The remaining portion of the fifth set of crown facets 112 includes a seventh set of crown facets 116, which has a generally hexagonal shape. The seventh set of crown facets 116 can be formed at an angle between approximately 32° and approximately 35°, or at an angle between approximately 30° and approximately 37°, the same angle as the fifth set of crown facets 112. The triangular portion cut from the fifth set of crown facets 112 forms an eighth set of crown facets 118, which is formed at an angle between approximately 36° and approximately 39°. In another embodiment, the eighth set of crown facets 118 is formed at an angle between approximately 34° and approximately 41°.

[0071] like Figure 5E As shown, the next step is to cut the ninth crown facet 120 and the tenth crown facet 122 from the fourth crown facet 110. The ninth crown facet 120 includes the portion of the fourth crown facet 110 remaining after the upper girdle facets are cut, and is thus formed at the same angle as the fourth crown facet 110. The tenth crown facet 122 generally corresponds to the upper girdle facets of the final gemstone and can be formed at an angle between approximately 58° and approximately 60°. In another embodiment, the tenth crown facet 122 is formed at an angle between approximately 56° and approximately 62°.

[0072] Finally, as Figure 5F As shown, the final step in forming the crown of the gemstone is to cut the eleventh set of crown facets 124 and the twelfth set of crown facets 126 from the seventh set of crown facets 116. The eleventh set of crown facets 124 is generally triangular and is formed where adjacent crown facets in the seventh set of crown facets 116 meet. The eleventh set of crown facets 124 can be formed at an angle of about 25° to about 27°. In another embodiment, the eleventh set of crown facets 124 is formed at an angle between about 23° and about 29°. The twelfth set of crown facets 126 is formed from the remainder of the seventh set of crown facets 116 and is therefore formed at the same angle as the seventh set of crown facets 116.

[0073] like Figure 5F As shown, the remaining set of facets in the crown corresponds to... Figure 1The crown facets are as follows: The sixth crown facet 114 corresponds to the upper central crown facet. The eighth crown facet 118 corresponds to the lower central crown facet. The ninth crown facet 120 corresponds to the lower main crown facet. The tenth crown facet 122 corresponds to the upper waist facet. The eleventh crown facet 124 corresponds to the star facet. The twelfth crown facet 126 corresponds to the upper main crown facet. Generally, the angle of the twelfth crown facet 126 (corresponding to the upper main crown facet) will be smaller than the angle of the eighth crown facet 118 (corresponding to the lower central crown facet), and the angle of the sixth crown facet 114 (corresponding to the upper central crown facet) will be smaller than the angle of the ninth crown facet 120. Additionally, the angle of the tenth crown facet 122 (corresponding to the upper waist facet) is generally larger than the angles of the other crown facet groups.

[0074] Now for reference Figures 6A to 6F The diagram illustrates the steps involved in forming the pavilion section of a gemstone. (For example...) Figure 6A As shown, the first step includes forming the pavilion tip 202 and the first set of pavilion facets 204. During the formation of the pavilion, the pavilion tip 202 can be formed as a flat bottom surface of the gemstone, or it can be formed beforehand. The first set of pavilion facets 204 formed on the pavilion are formed at angles between approximately 50° and approximately 53°, or between approximately 48° and approximately 55°. The angles of the first set of pavilion facets 204 and the angles of subsequent pavilion facets formed in subsequent steps are also relative to the horizontal plane defined by the table 102 (in...). Figures 5A to 5D (As shown in the image) Measurement, similar to that in Figure 1 How to measure the angles of the finished pavilion facets. After this step, the pavilion of the gemstone has a pavilion tip 202 and a first set of pavilion facets 204, and typically has a trapezoidal cross-section.

[0075] like Figure 6B As shown, the next step in forming the pavilion is to make a second cut at a slightly shallower angle. This second cut leaves a portion of the first set of pavilion facets 204, which is shown as the second set of pavilion facets 206. The second cut also forms a third set of pavilion facets 208. The second set of pavilion facets 206 is generally formed at the same angle as the first set of pavilion facets 204. In one embodiment, the third set of pavilion facets 208 is formed at an angle between approximately 45° and approximately 48°. In another embodiment, the third set of pavilion facets 208 is formed at an angle between approximately 43° and approximately 50°.

[0076] This step is in Figure 6CAs shown in the diagram. Here, the fourth set of pavilion facets 210 and the fifth set of pavilion facets 212 are formed from the third set of pavilion facets 208. In this step, the flat surface of the pavilion tip 202 is cut at an angle to form the fifth set of pavilion facets 212. In one embodiment, the fifth set of pavilion facets 212 is formed at an angle between approximately 41° and approximately 42°. In another embodiment, the fifth set of pavilion facets 212 is formed at an angle between approximately 39° and approximately 44°. The fourth set of pavilion facets 210 includes the remainder of the third set of pavilion facets 208 and is thus formed at approximately the same angle as the third set of pavilion facets 208.

[0077] like Figure 6D As shown, the next step is to form a sixth set of pavilion facets 214 on the pavilion of the gemstone. The sixth set of pavilion facets 214 is formed along the edges connecting adjacent pairs of the fourth set of pavilion facets 210. Thus, the sixth set of pavilion facets 214 reduces the size of the fourth set of pavilion facets 210 to form a seventh set of pavilion facets 216. The sixth set of pavilion facets 214 also intersects with the fifth set of pavilion facets 212, thereby forming an eighth set of pavilion facets 218. The seventh set of pavilion facets 216 is generally formed at the same angle as the fourth set of pavilion facets 210. The eighth set of pavilion facets 218 is generally formed at the same angle as the fifth set of pavilion facets 212. In one embodiment, the sixth set of pavilion facets 214 is formed at an angle between approximately 44° and approximately 45°. In another embodiment, the sixth set of pavilion facets 214 is formed at an angle between approximately 42° and approximately 47°.

[0078] Next, as Figure 6E As shown, a ninth set of pavilion facets 220 is formed. The ninth set of pavilion facets 220 is formed at a shared edge between adjacent facets of the second set of pavilion facets 206 and overlaps with the second set of pavilion facets 206. Thus, forming the ninth set of pavilion facets 220 forms a tenth set of pavilion facets 222, which includes the remaining portion of the second set of pavilion facets 206. The tenth set of pavilion facets 222 is generally formed at the same angle as the second set of pavilion facets 206. In one embodiment, the ninth set of pavilion facets 220 is formed at an angle between approximately 48° and approximately 51°. In another embodiment, the ninth set of pavilion facets 220 is formed at an angle between approximately 46° and approximately 53°.

[0079] Finally, as Figure 6FAs shown, an eleventh set of pavilion facets 224 is formed. The eleventh set of pavilion facets 224 is cut from the ninth set of pavilion facets 220 and the tenth set of pavilion facets 222. Thus, a twelfth set of pavilion facets 226 and a thirteenth set of pavilion facets 228 are also formed. The twelfth set of pavilion facets 226 is formed from the remaining portion of the tenth set of pavilion facets 222, and therefore forms at approximately the same angle as the tenth set of pavilion facets 222. The thirteenth set of pavilion facets 228 is formed from the remaining portion of the ninth set of pavilion facets 220, and therefore forms at approximately the same angle as the ninth set of pavilion facets 220. In one embodiment, the eleventh set of pavilion facets 224 is formed at an angle between approximately 55° and approximately 58°. In another embodiment, the eleventh set of pavilion facets 224 is formed at an angle between approximately 53° and approximately 60°.

[0080] like Figure 6F As shown, the sixth group of pavilion facets 214 corresponds to Figure 1 The lower candle facet of the pavilion is completed in the middle. The seventh group of pavilion facets 216 corresponds to the lower main pavilion facet. The eighth group of pavilion facets 218 corresponds to the adjacent facet of the pavilion tip. The eleventh group of middle facets 224 corresponds to the lower waist facet. The twelfth group of pavilion facets 226 corresponds to the upper main pavilion facet. The thirteenth group of middle facets 228 corresponds to the upper candle facet. Generally, the angle of the eighth group of pavilion facets 218 (corresponding to the adjacent facet of the pavilion tip) is smaller than the angle of the sixth group of pavilion facets 214 (corresponding to the lower candle facet) and the angle of the seventh group of pavilion facets 216 (corresponding to the lower main pavilion facet). In addition, the angle of the sixth group of pavilion facets 214 is usually smaller than the angle of the thirteenth group of pavilion facets 228 (corresponding to the upper candle facet), and the angle of the seventh group of pavilion facets 216 is usually smaller than the angle of the twelfth group of pavilion facets 226 (corresponding to the upper main pavilion facet). Finally, the angle of the eleventh group of pavilion facets 224 (corresponding to the lower waist facets) is usually greater than the angle of the other groups of pavilion facets.

[0081] Thus, a gemstone with a crown, girdle, and pavilion is formed. The crown and pavilion comprise multiple sets of interlocking facets that share edges and apexes on the gemstone's surface. Each set of interlocking facets is set at a specific angle. The shape of the facets, the structure of the facets, and the angles at which the facets are formed on the gemstone's surface enhance its brilliance. Brilliance refers to the amount of light that enters the gemstone and is reflected internally to leave the crown. The facets according to various aspects of this disclosure increase the amount of light reflected from the inner surfaces of the facets, thereby increasing the gemstone's brilliance. These facets also impart a distinct golden or yellow hue to the gemstone.

[0082] While this disclosure has been described with reference to one or more specific embodiments, those skilled in the art will recognize that many changes may be made to the embodiments without departing from the spirit and scope of this disclosure. Each of these embodiments, and its obvious variations, is to be regarded as falling within the spirit and scope of this disclosure. It is also contemplated that additional embodiments according to aspects of this disclosure may combine any number of features from any of the embodiments described herein.

Claims

1. A method for forming a gemstone, comprising: A table portion is cut in the gemstone, the table portion forming the horizontal upper surface of the crown portion of the gemstone; Cut the first set of crown facets in the gemstone; In the gemstone, the first group of crown facets is divided into a second group of crown facets and a third group of crown facets; A pentagonal surface is cut from a portion of each of (i) the second set of crown facets, (ii) the third set of crown facets, and (iii) the platform, to form a fourth set of crown facets from the remaining portion of the second set of crown facets, the pentagonal surface forming a fifth set of crown facets, and the remaining portion of the third set of crown facets forming a sixth set of crown facets. Cutting the first triangular portion from each of the fifth set of crown facets, the remaining portion of the fifth set of crown facets forms the seventh set of crown facets, and the first triangular portion forms the eighth set of crown facets in the gemstone; In the gemstone, the fourth group of crown facets is divided into the ninth group of crown facets and the tenth group of crown facets; and A second triangular portion is cut from each of (i) the seventh set of crown facets and (ii) the table portion, the second triangular portion forming the eleventh set of crown facets in the gemstone, and the remaining portion of the seventh set of crown facets forming the twelfth set of crown facets.

2. The method as described in claim 1, wherein, Each crown facet in the eleventh group of crown facets is positioned adjacent to and abutting the edge of the platform, wherein each crown facet in the twelfth group of crown facets is positioned between two crown facets in the eleventh group of crown facets, wherein each crown facet in the sixth group of crown facets is positioned between two crown facets in the twelfth group of crown facets, wherein each crown facet in the ninth group of crown facets is positioned adjacent to and abutting the edge of one crown facet in the sixth group of crown facets, wherein each crown facet in the eighth group of crown facets is positioned such that: (i) it is adjacent to and abutting the edge of one crown facet in the twelfth group of crown facets, and (ii) it is positioned between two crown facets in the ninth group of crown facets, wherein the crown facets in the tenth group of crown facets are formed as pairs of adjacent crown facets, wherein each pair of adjacent crown facets in the tenth group of crown facets is positioned between two crown facets in the ninth group of crown facets.

3. The method of claim 1, further comprising: A girdle is manufactured for the gemstone, the girdle being positioned adjacent to the crown of the gemstone, the girdle surrounding the gemstone, and wherein each crown facet of the tenth set of crown facets is positioned adjacent to and abutting the upper edge of the girdle; and The pavilion for manufacturing the gemstone.

4. The method of claim 3, wherein, The gemstone has a platform percentage between 33% and 36%.

5. The method of claim 3, wherein, The gemstone has a top depth percentage between 27% and 31%.

6. The method of claim 3, wherein, The gemstone has a bottom depth percentage between 53% and 56%.

7. The method of claim 3, wherein, Dividing the first set of crown facets into a second set of crown facets and a third set of crown facets includes: cutting the second set of crown facets from the first set of crown facets, wherein the remaining portion of the first set of crown facets forms the third set of crown facets.

8. The method of claim 3, wherein, Dividing the fourth group of crown facets into a ninth group of crown facets and a tenth group of crown facets includes: cutting the ninth group of crown facets from the fourth group of crown facets, wherein the remaining portion of the fourth group of crown facets forms the tenth group of crown facets.

9. The method of claim 3, wherein, The horizontal upper surface of the crown is defined by the table of the gemstone, wherein each crown facet of the sixth group of crown facets is set at a first angle relative to the horizontal surface, each crown facet of the eighth group of crown facets is set at a second angle relative to the horizontal surface, each crown facet of the ninth group of crown facets is set at a third angle relative to the horizontal surface, each crown facet of the tenth group of crown facets is set at a fourth angle relative to the horizontal surface, each crown facet of the eleventh group of crown facets is set at a fifth angle relative to the horizontal surface, and each crown facet of the twelfth group of crown facets is set at a sixth angle relative to the horizontal surface.

10. The method of claim 9, wherein the first angle is between 41 degrees and 47 degrees, the second angle is between 34 degrees and 41 degrees, the third angle is between 44 degrees and 50 degrees, the fourth angle is between 56 degrees and 62 degrees, the fifth angle is between 23 degrees and 29 degrees, and the sixth angle is between 30 degrees and 37 degrees.

11. A method for forming a gemstone, comprising: A pavilion tip is cut into the gemstone, the pavilion tip forming the horizontal bottom surface of the pavilion portion of the gemstone; Cut the first set of pavilion facets in the gemstone; In the gemstone, the first group of pavilion facets is divided into a second group of pavilion facets and a third group of pavilion facets; From each cut portion of the pavilion tip and the third group of pavilion facets, the remaining portion of the third group of pavilion facets forms the fourth group of pavilion facets, and the cut portions of the pavilion tip and the third group of pavilion facets form the fifth group of pavilion facets. The sixth set of pavilion facets is cut from a portion of the fourth set of pavilion facets and the fifth set of pavilion facets. The remaining portion of the fourth set of pavilion facets forms the seventh set of pavilion facets, and the remaining portion of the fifth set of pavilion facets forms the eighth set of pavilion facets. The ninth set of pavilion facets is cut from the portion of the second set of pavilion facets, and the remaining portion of the second set of pavilion facets forms the tenth set of pavilion facets; and The eleventh set of pavilion facets is cut from a portion of the ninth set of pavilion facets and the tenth set of pavilion facets. The remaining portion of the tenth set of pavilion facets forms the twelfth set of pavilion facets, and the remaining portion of the ninth set of pavilion facets forms the thirteenth set of pavilion facets.

12. The method of claim 11, wherein the pavilion facets in the eighth group of pavilion facets form the low point of the pavilion, wherein each pavilion facet in the seventh group of pavilion facets is arranged adjacent to and adjacent to the edge of one pavilion facet in the eighth group of pavilion facets, wherein each pavilion facet in the sixth group of pavilion facets is arranged between two pavilion facets in the seventh group of pavilion facets and between two pavilion facets in the eighth group of pavilion facets, wherein each pavilion facet in the twelfth group of pavilion facets is arranged adjacent to and adjacent to the seventh group of pavilion facets. The edge of a pavilion facet in the facet group, wherein each pavilion facet in the thirteenth group is arranged adjacent to and adjacent to the edge of one of the multiple pavilion facets in the sixth group, and each pavilion facet in the thirteenth group is disposed between two pavilion facets in the twelfth group, and wherein the pavilion facets in the eleventh group form pairs of adjacent pavilion facets, and each pair of adjacent pavilion facets in the eleventh group is disposed between two pavilion facets in the twelfth group.

13. The method of claim 11, further comprising: A girdle is manufactured around the gemstone, the girdle being positioned adjacent to the pavilion of the gemstone, the girdle surrounding the gemstone, and wherein each pavilion facet in the eleventh set of pavilion facets is positioned adjacent to and abutting the lower edge of the girdle; and To manufacture the crown of the gemstone.

14. The method of claim 13, wherein, The gemstone has a platform percentage between 33% and 36%.

15. The method of claim 13, wherein, The gemstone has a top depth percentage between 27% and 31%.

16. The method of claim 13, wherein, The gemstone has a bottom depth percentage between 53% and 56%.

17. The method according to claim 13, wherein, The gemstone has a total depth percentage between 86% and 91%.

18. The method of claim 13, wherein, The gemstone has a waist thickness percentage between 3% and 8%.

19. A method for forming a gemstone having a crown and a pavilion, the method comprising: The crown of the gemstone is manufactured by the following steps: A table portion is cut in the gemstone, and the table portion forms the horizontal upper surface of the crown portion; Cut the first set of crown facets in the gemstone; In the gemstone, the first group of crown facets is divided into a second group of crown facets and a third group of crown facets; A pentagonal surface is cut from a portion of each of the second group of crown facets and the third group of crown facets to form a fourth group of crown facets from the remaining portion of the second group of crown facets, the pentagonal surface forms a fifth group of crown facets, and the remaining portion of the third group of crown facets forms a sixth group of crown facets. The first triangular portion is cut from each of the fifth set of crown facets, the remaining portion of the fifth set of crown facets forms the seventh set of crown facets, and the first triangular portion forms the eighth set of crown facets in the gemstone; In the gemstone, the fourth group of crown facets is divided into the ninth group of crown facets and the tenth group of crown facets; and A second triangular portion is cut from each of the crown facets of the platform and the seventh set of crown facets, the second triangular portion forming the eleventh set of crown facets in the gemstone, and the remaining portion of the seventh set of crown facets forming the twelfth set of crown facets; and The pavilion portion of the gemstone is manufactured by the following steps: A pavilion tip is cut into the gemstone, and the pavilion tip forms the horizontal bottom surface of the pavilion portion; Cut the first set of pavilion facets in the gemstone; In the gemstone, the first group of pavilion facets is divided into a second group of pavilion facets and a third group of pavilion facets; From each cut portion of the pavilion tip and the third group of pavilion facets, the remaining portion of the third group of pavilion facets forms the fourth group of pavilion facets, and the cut portions of the pavilion tip and the third group of pavilion facets form the fifth group of pavilion facets. The sixth set of pavilion facets is cut from a portion of the fourth set of pavilion facets and the fifth set of pavilion facets. The remaining portion of the fourth set of pavilion facets forms the seventh set of pavilion facets, and the remaining portion of the fifth set of pavilion facets forms the eighth set of pavilion facets. The ninth set of pavilion facets is cut from the portion of the second set of pavilion facets, and the remaining portion of the second set of pavilion facets forms the tenth set of pavilion facets; and The eleventh set of pavilion facets is cut from a portion of the ninth set of pavilion facets and the tenth set of pavilion facets. The remaining portion of the tenth set of pavilion facets forms the twelfth set of pavilion facets, and the remaining portion of the ninth set of pavilion facets forms the thirteenth set of pavilion facets.

20. The method of claim 19, wherein each crown facet in the ninth group of crown facets is positioned adjacent to and abutting the edge of one crown facet in the sixth group of crown facets, wherein each crown facet in the eighth group of crown facets is positioned adjacent to and abutting the edge of one crown facet in the twelfth group of crown facets, and is positioned between two crown facets in the ninth group of crown facets, wherein each pavilion facet in the twelfth group of pavilion facets is positioned adjacent to and abutting the edge of one pavilion facet in the seventh group of pavilion facets, wherein each pavilion facet in the thirteenth group of pavilion facets is positioned adjacent to and abutting the edge of one pavilion facet in the plurality of pavilion facets in the sixth group of pavilion facets, and each pavilion facet in the thirteenth group of pavilion facets is positioned between two pavilion facets in the twelfth group of pavilion facets.

Images