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A brilliant is a diamond or other gemstone cut in a particular form with 57-58 facets so as to have exceptional brilliance. The underside is conical, a shape that provides maximal light return through the top of the diamond. Even with modern techniques, the cutting and polishing of a diamond crystal always results in a dramatic loss of weight ...
A diamond cut is a style or design guide used when shaping a diamond for polishing such as the brilliant cut. Cut refers to shape (pear, oval), and also the symmetry, proportioning and polish of a diamond. The cut of a diamond greatly affects a diamond's brilliance—a poorly-cut diamond is less luminous. In order to best use a diamond gemstone ...
For instance, a 2.20-carat (440 mg) octahedron may produce (i) either two half-carat (100 mg) diamonds whose combined value may be higher than that of (ii) a 0.80-carat (160 mg) diamond plus a 0.30-carat (60 mg) diamond that could be cut from the same rough diamond. The round brilliant cut and square brilliant cuts are preferred when the ...
Gabriel S. Tolkowsky (15 September 1939 – 28 May 2023) was a Belgian-Israeli diamond cutter, best known for cutting the Centenary Diamond. [1] He was the great nephew of Marcel Tolkowsky, father of the modern round brilliant diamond cut. [2] He is the sixth generation in his family to become well-known in the diamond cutting trade. [3][4]
Marcel Tolkowsky (25 December 1899 – 10 February 1991), [1] an engineer by education, was a Belgian member of a Jewish family of diamond cutters from Poland. He is generally acknowledged as the father of the modern round brilliant diamond cut. [2] Many of his family have gone on to become noted diamond cutters, including his cousin Lazare ...
In the early 1960s Leon Finker created his version on the "triangular brilliant cut diamond", which he called the trillion cut. Finker had a large diamond cutting factory in New York, and Henry Meyer Diamond Company, who was also cutting triangular brilliant diamonds, used the same diamond cutters, though their stones were cut slightly differently.
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