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  2. 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.

  3. International Gemological Institute - Wikipedia

    en.wikipedia.org/wiki/International_Gemological...

    International Gemological Institute (IGI) is a gemological organization which certifies diamond, colored stone and jewelry. It was established in 1975 in Belgium. It was established in 1975 in Belgium.

  4. Antwerp World Diamond Centre - Wikipedia

    en.wikipedia.org/wiki/Antwerp_World_Diamond_Centre

    The World Diamond Center is home to all of the major diamond mining companies, which discover diamonds for over 1,800 individual diamond dealers across the globe. Other groups that aid in development, protection, and processing of these diamonds include diamond banks, insurance brokers, forwarders, best polishers, and researchers.

  5. Are lab-grown diamonds 'worthless'? Experts weigh in as ... - AOL

    www.aol.com/news/lab-grown-diamonds-worthless...

    Some high-end fine jewelers have gotten on board with the trend. In 2023, jeweler Jean Dousset, the great-great-grandson of Louis Cartier, opened a showroom with “designer” lab-grown diamonds ...

  6. World Diamond Council - Wikipedia

    en.wikipedia.org/wiki/World_Diamond_Council

    The World Diamond Council is an organization representing the entire diamond value chain including representatives from diamond mining, manufacturing, trading and retail. The council was established in July 2000. The purpose was to create a system to keep the supply chain of diamonds as free as possible from conflict diamonds. [1] [2] [3] [4]

  7. Antwerpsche Diamantkring - Wikipedia

    en.wikipedia.org/wiki/Antwerpsche_Diamantkring

    The Antwerpsche Diamantkring was established in 1928 in Antwerp, Belgium, to become the first diamond bourse worldwide that is dedicated exclusively to rough diamonds trade. [1] It is a member of the World Federation of Diamond Bourses. 85% of the world’s diamond supply is traded in Antwerp, and in particular in the Antwerpsche Diamantkring ...

  8. World Diamond Congress - Wikipedia

    en.wikipedia.org/wiki/World_Diamond_Congress

    The World Diamond Congress is a bi-annual industry event organized by the World Federation of Diamond Bourses and the International Diamond Manufacturers Association. The first World Diamond Congress was held in Antwerpen, Belgium in 1947. It was held annually till 1956 and since then - every two years.

  9. Diamond clarity - Wikipedia

    en.wikipedia.org/wiki/Diamond_clarity

    Diamond clarity is the quality of diamonds that relates to the existence and visual appearance of internal characteristics of a diamond called inclusions, and surface defects, called blemishes. Clarity is one of the four Cs of diamond grading, the others being carat , color , and cut .

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