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  2. Gemological Institute of America - Wikipedia

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

    Diamond reports from GIA (as well as other, for-profit sources) are now demanded by most consumers purchasing diamonds over a certain size, typically for over 0.5 carat (100 mg), and almost always for over 1.0 carat (200 mg), and are considered an important tool in guaranteeing that a diamond is accurately represented to a potential buyer.

  3. International Gemological Institute - Wikipedia

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

    IGI is the largest laboratory for certification of diamonds and fine jewelry. [8] IGI is International Organization for Standardization (ISO) 9001: 2000 certified in four countries, including the United States, Canada, India and the United Arab Emirates. [citation needed]

  4. Kimberley Process Certification Scheme - Wikipedia

    en.wikipedia.org/wiki/Kimberley_Process...

    These are also sorted by HTS codes for unsorted (gem and industrial) rough diamonds, sorted rough industrial diamonds, and sorted rough gem diamonds – the latter of which is most likely to be polished into finished stones and jewelry for retail sale, while industrial diamonds are most likely to be used in cutting and drilling tools. Failure ...

  5. The symbolism and meaning behind different engagement ring shapes

    www.aol.com/symbolism-meaning-behind-different...

    Here is what the most popular diamond shapes for engagement rings mean. While reading, think about which shape reflects you and your partner. Round Brilliant Cut: Traditional and Elegant

  6. 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 .

  7. The love for lab-grown diamonds - AOL

    www.aol.com/finance/forget-bling-beers-found...

    De Beers tried its hand at growing a lab-grown diamond jewelry business for six years before ditching it earlier this year. But a segment of that failed attempt has flourished—and it has nothing ...

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