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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 ...
A scattering of "brilliant" cut diamonds shows off the many reflecting facets. 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 ...
Bruting is the art of cutting a diamond to make the girdle round. In the modern era diamonds are rounded using either a laser, a diamond disk impregnated with diamonds, or spinning two diamonds so they cut against each other. Industrial diamonds can also be used for bruting a diamond round. Modern computer software measures the roundness of ...
Gabriel S. Tolkowsky (15 September 1939 – 28 May 2023) was a Belgian diamond cutter. He was known for cutting the famous Centenary Diamond, [ 1] and was one of the world's most renowned diamond cutters. The great nephew of Marcel Tolkowsky, father of the modern round brilliant diamond cut, [ 2] he is the sixth generation in his family to ...
Hearts and arrows ( H&A) diamonds are precision-cut variations of the traditional 57-faceted round brilliant cut. They are cut to "ideal" proportions with good optical symmetry, polish, and a specific faceting pattern. When these factors are present, the result is a near-perfect pattern of eight symmetrical arrows when viewed from the top ...
(A poorly cut 1.0-carat (200 mg) diamond may have the same diameter and appear as large as a 0.85-carat (170 mg) diamond.) The depth percentage is the overall quickest indication of the quality of the cut of a round brilliant. "Ideal" round brilliant diamonds should not have a depth percentage greater than 62.5%.
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