Method for cutting diamond and diamond proportion

Abstract

To provide a diamond rendering reflective light off the table goldenly brilliant by making a proportion thereof symmetry at any place viewed from an upper face, a side face or a bottom face, first reference lines, second reference lines crossing the first reference lines at right angles and third reference lines equally dividing the first reference lines and the second reference lines into four equal parts, respectively are provided. A first arc line is made by intersections of the reference lines. The approximately regular hexadecagon shaped table is established by connection of the intersections of the reference lines with the first arc line. Fourth reference lines dividing the third reference lines into two equal parts and a second arc line with a circle concentric with and larger than the first arc line is made. Star facets are established by connection of the intersections among the fourth reference lines and the second arc line with the top of the table. Upper main facets are established by connection of intersections of a diamond outward appearance and the first and the third reference lines with intersections of the fourth reference lines and the second arc line.

Description

BACKGROUND OF THE INVENTION [0001] 1. Field of the Invention [0002] This invention relates to a method for cutting diamond, and proportions and brightness of a diamond formed by the cutting method. [0003] 2. Related Art [0004] In general, a value of a polished diamond is determined by the 4C's, i.e. Carat (Weight), Clarity (Transparency), Color and Cut. Although these 4C's are important respectively, the evaluating of a diamond is generally done by Color, Clarity (Transparency), Cut and Carat (Weight) in the mentioned order. [0005] However, before a diamond cutting method was invented, there had not at all been recognition that a diamond had been a beautiful object. Namely, there had been recognition that a diamond had been a mere hard stone. What caused a diamond which had been recognized before to be a mere hard stone to come to be recognized to be a beautiful thing was the development of the techniques for brightening the diamond beautifully by cutting the same. Therefore, a diam...

AI Technical Summary

Benefits of technology

[0029] Owing to such a diamond cutting method or proportions of the resultant diamond formed or set in this manner, a diamond obtained has proportions in which the diamond is substantiall

Problems solved by technology

However, before a diamond cutting method was invented, there had not at all been recognition that a diamond had been a beautiful object.

This causes the proportions of a diamond to be deteriorated in some cases.

However, the reflected light is the same as that obtained in a related art diamond cutting method, and this reflected light is unable to express a tone of a gold color.

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