Gemstone and manufacturing method thereof

Abstract

The present invention relates to a gemstone comprising: a crown having a mesa and twelve diagonal planes; a pavilion part which is provided with a bottom tip and twelve main facets; and a waist portion formed between the crown portion and the pavilion portion, wherein an inclination angle of the diagonal plane is set in a range of 33.5 DEG to 35.5 DEG with respect to a horizontal plane, and an inclination angle of the main facet is set in a range of 41.5 DEG to 42.5 DEG with respect to the horizontal plane. The gemstone is cut and polished according to the optical principle and the brightnessof gemstone materials, has the advantages of sufficient reverse drilling and single reverse drilling, and can emit brighter, clearer and brighter light.

Description

technical field [0001] The present invention relates to gemstones, in particular gemstones with novel cuts, such as diamonds or the like. Background technique [0002] Cut gemstones or rough diamonds are known for their dazzling brilliance when exposed to light. Cut gemstones or diamonds generally have the following characteristics: brilliance, fire and scintillation. [0003] The perfect display of a diamond's characteristics is closely related to its cut, which refers to a diamond's proportions and level of finish. A cut diamond usually consists of three parts: the table, the crown and the pavilion. A diamond's ratios refer to the relationship between table size, crown angle and pavilion depth. There are many possible combinations of ratios and ultimately affect how the stone interacts with light. [0004] The cutting method can calculate the critical angle (Critical Angle) from the refractive index (Refraction Index) of different materials according to the principles ...

AI Technical Summary

Problems solved by technology

[0007] The advantage of bright back drilling is that there are many facets, and the directionality of the light emitted from the stone body is strong; the disadvantage is that the angle of some facets is close to or even lower than the critical angle, which deviates from the optimal angle range, and part of the light is on the surface of the stone body. The refraction leaves and cannot enter the stone body; there are many cut surfaces, the time required for cutting and polishing is long, and the production cost is high

[0008] SLR drills have much fewer cut surfaces than foot-back drills, and the angles of all the cut surfaces can be controlled within the optimal angle range. The brightness (Brillant) and fire (Fire) can reach the highest state, so it will emit more vivid and clearer light, and the production cost is low; the disadvantage is that the number of facets is too small, and the crown and the table have only 9 facets, and the directionality Low

[0009] These two kinds of diamonds have their own advantages and disadvantages. The light of the reverse diamond is not as bright and clear as that of the SLR diamond, and the SLR diamond does not have the multi-angle directional fire and physical reflection effect of the reverse diamond.

Images