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2. Diamond cutting - Wikipedia

   en.wikipedia.org/wiki/Diamond_cutting

   Diamond cutting is the practice of shaping a diamond from a rough stone into a faceted gem. Cutting diamonds requires specialized knowledge, tools, equipment, and techniques because of its extreme difficulty. The first guild of diamond cutters and polishers (Diamantaire) was formed in 1375 in Nuremberg, Germany, [1] and led to the development ...

3. Diamond cut - Wikipedia

   en.wikipedia.org/wiki/Diamond_cut

   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 ...

4. Brilliant (diamond cut) - Wikipedia

   en.wikipedia.org/wiki/Brilliant_(diamond_cut)

   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 ...

5. Antwerp diamond district - Wikipedia

   en.wikipedia.org/wiki/Antwerp_diamond_district

   Antwerp's diamond district, also known as the Diamond Quarter ( Diamantkwartier ), and dubbed the Square Mile, [ 1] is an area within the city of Antwerp, Belgium. It consists of several square blocks covering an area of about one square mile. While as of 2012, much of the gem cutting and polishing work historically done in the neighborhood had ...

6. Gabi Tolkowsky - Wikipedia

   en.wikipedia.org/wiki/Gabi_Tolkowsky

   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 become ...

7. Diamond turning - Wikipedia

   en.wikipedia.org/wiki/Diamond_turning

   Diamond turning is turning using a cutting tool with a diamond tip. It is a process of mechanical machining of precision elements using lathes or derivative machine tools (e.g., turn-mills, rotary transfers) equipped with natural or synthetic diamond-tipped tool bits. The term single-point diamond turning ( SPDT) is sometimes applied, although ...

8. Diamond (gemstone) - Wikipedia

   en.wikipedia.org/wiki/Diamond_(gemstone)

   Diamond[ a] is a gemstone formed by cutting a raw diamond. Diamonds are one of the best-known and most sought-after gems, and they have been used as decorative items since ancient times. The hardness of diamond and its high dispersion of light —giving the diamond its characteristic "fire"—make it useful for industrial applications and ...

9. Material properties of diamond - Wikipedia

   en.wikipedia.org/wiki/Material_properties_of_diamond

   Material properties of diamond. Burns above 700 °C in air. Diamond is the allotrope of carbon in which the carbon atoms are arranged in the specific type of cubic lattice called diamond cubic. It is a crystal that is transparent to opaque and which is generally isotropic (no or very weak birefringence ).