Patent ID: 11918090
Assignee: ALBERT GAD LTD.
Field: Other consumer goods (Other fields)
Classification: CPC A | IPC A  B

Claim 17:
18. A method of forming a gemstone, the method comprising:
forming a girdle defining a perimeter of the gemstone, the girdle having an elliptical cross-section with a major axis and a minor axis, the major axis being larger than the minor axis;
forming a first preliminary table on an upper portion of the gemstone, the first preliminary table defining a generally flat upper surface of the gemstone;
forming a first temporary set of crown facets on the upper portion of the gemstone;
forming a second temporary set of crown facets on the upper portion of the gemstone;
forming a third temporary set of crown facets on the upper portion of the gemstone from (i) a portion of the first preliminary table, (ii) a portion of each of the first temporary set of crown facets, and (iii) a portion of each of the second temporary set of crown facets, such that (a) the first preliminary table is reduced in size to form a second preliminary table, (b) a remainder of the first temporary set of crown facets forms a fourth temporary set of crown facets, and (c) a remainder of the second temporary set of crown facets forms a fifth temporary set of crown facets;
forming a sixth temporary set of crown facets on the upper portion of the gemstone from (i) a portion of the second preliminary table and (ii) a portion of each of the third temporary set of crown facets, such that (a) the second preliminary table is reduced in size to form a third preliminary table and (b) a remainder of the third temporary set of crown facets forms a first final set of crown facets;
forming (i) a second final set of crown facets on the upper portion of the gemstone from a portion of each of the fourth temporary set of crown facets and (ii) a third final set of crown facets on the upper portion of the gemstone from a portion of some of the fourth temporary set of crown facets and a portion of each of the fifth temporary set of crown facets, such that (a) a remainder of the fourth temporary set of crown facets forms a fourth final set of crown facets and (b) a remainder of the fifth temporary set of crown facets forms a fifth final set of crown facets;
forming a sixth final set of crown facets on the upper portion of the gemstone from (i) a portion of the third preliminary table and (ii) a portion of each of the sixth temporary set of crown facets, such that (a) the third preliminary table is reduced in size to form a final table and (b) a remainder of the sixth temporary set of crown facets forms a seventh final set of crown facets;
forming a first temporary set of pavilion facets on a lower portion of the gemstone;
forming a second temporary set of pavilion facets on a lower portion of the gemstone;
forming a third temporary set of pavilion facets on the lower portion of the gemstone from a portion of each of the first temporary set of pavilion facets, such that a remainder of the first temporary set of pavilion facets forms a fourth temporary set of pavilion facets;
forming a fifth temporary set of pavilion facets on the lower portion of the gemstone from a portion of each of the second temporary set of pavilion facets, such that a remainder of the second temporary set of pavilion facets forms a sixth temporary set of pavilion facets;
forming a seventh temporary set of pavilion facets on the lower portion of the gemstone from (i) a portion of each of the third temporary set of pavilion facets, (ii) a portion of each of the fourth temporary set of pavilion facets, (iii) a portion of each of the fifth temporary set of pavilion facets, and (iv) a portion of each of the sixth temporary set of pavilion facets, such that (a) a remainder of the third temporary set of pavilion facets forms a first final set of pavilion facets, (b) a remainder of the fourth temporary set of pavilion facets forms an eighth temporary set of pavilion facets, (c) a remainder of the fifth temporary set of pavilion facets forms a second final set of pavilion facets, and (d) a remainder of the sixth temporary set of pavilion facets forms a ninth temporary set of pavilion facets; and
forming (A) a third final set of pavilion facets from (i) a portion of some of the seventh temporary set of pavilion facets and (ii) a portion of each of the eighth temporary set of pavilion facets and (B) a fourth final set of pavilion facets from (i) a portion of some of the seventh temporary set of pavilion facets, (ii) a portion of some of the eighth temporary set of pavilion facets, and (iii) a portion of each of the ninth temporary set of pavilion facets, such that (a) a remainder of the seventh temporary set of pavilion facets forms a fifth final set of pavilion facets, (b) a remainder of the eighth temporary set of pavilion facets forms a sixth final set of pavilion facets, and (c) a remainder of the ninth temporary set of pavilion facets forms a seventh final set of pavilion facets.