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  2. Diamond cutting - Wikipedia

    en.wikipedia.org/wiki/Diamond_cutting

    The first major development in diamond cutting came with the "Point Cut" during the later half of the 14th century: the Point Cut follows the natural shape of an octahedral rough diamond crystal, [2] eliminating some waste in the cutting process. Diamond cutting, as well as overall processing, is concentrated in a few cities around the world ...

  3. Diamantaire - Wikipedia

    en.wikipedia.org/wiki/Diamantaire

    A diamantaire (French origin) could be a gem-quality diamond manufacturer or producer, master diamond cutter, and or a graduate gemologist specializing in diamonds. Such individuals demonstrate considerable expertise in different types of gemstones, particularly when it comes to increasing the value and quality of a rough or raw diamond. [1]

  4. Marcel Tolkowsky - Wikipedia

    en.wikipedia.org/wiki/Marcel_Tolkowsky

    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]

  5. Every kind of diamond cut, explained - AOL

    www.aol.com/entertainment/2017-07-31-every-kind...

    Here’s a handy guide to 11 of the most common cuts, alongside photos of the most gorgeous rings on the planet.

  6. Gemological Institute of America - Wikipedia

    en.wikipedia.org/wiki/Gemological_Institute_of...

    In 1953 the GIA developed its International Diamond Grading System and the "four Cs" (cut, clarity, color, and carat weight) as a standard to compare and evaluate the quality of diamonds. [2] As of 2024, the institute is headquartered in Carlsbad, California, and operates in 13 countries, with 11 campuses, 9 laboratories, and 4 research centers.

  7. American Gem Society - Wikipedia

    en.wikipedia.org/wiki/American_Gem_Society

    Primary among these are their diamond grading services. Jewelers are able to have their diamonds scientifically evaluated according to the Four Cs: Color, Clarity, Cut, and Carat Weight. They are then given a diamond grading report, which can be provided to a consumer in order to verify the quality of the diamond they are purchasing. [3]

  8. Diamond (gemstone) - Wikipedia

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

    Diamond cutting is the art and science of creating a gem-quality diamond out of mined rough. The cut of a diamond describes the manner in which a diamond has been shaped and polished from its beginning form as a rough stone to its final gem proportions. The cut of a diamond describes the quality of workmanship and the angles to which a diamond ...

  9. Cut (gems) - Wikipedia

    en.wikipedia.org/wiki/Cut_(gems)

    The diamond cut planning stage is a complex process that requires the cutter to work with unique rough stones. Very often, the location of the inclusions in a rough stone will determine the type of shape to which a diamond may be cut. For economic reasons, most diamonds are cut to retain weight instead of maximizing brilliance. [2]