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  2. Diamond (gemstone) - Wikipedia

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

    The carat weight measures the mass of a diamond. One carat is defined as 200 milligrams (about 0.007 ounces avoirdupois). The point unit—equal to one one-hundredth of a carat (0.01 carat, or 2 mg)—is commonly used for diamonds of less than one carat. All else being equal, the price per carat increases with carat weight, since larger ...

  3. Taylor–Burton Diamond - Wikipedia

    en.wikipedia.org/wiki/Taylor–Burton_Diamond

    The diamond was subsequently named the "Taylor Burton Diamond". [8] Burton had previously bought Taylor the 33.19-carat Krupp Diamond in May 1968 at a cost of $307,000. [11] Burton and Taylor's jewels and other investments bought by the couple were officially assets of a tax shelter established by the pair, called the Atlantic Corporation. [12]

  4. Diamond - Wikipedia

    en.wikipedia.org/wiki/Diamond

    In May 2009, a 7.03-carat (1.406 g) blue diamond fetched the highest price per carat ever paid for a diamond when it was sold at auction for 10.5 million Swiss francs (6.97 million euros, or US$9.5 million at the time). [59]

  5. Synthetic diamond - Wikipedia

    en.wikipedia.org/wiki/Synthetic_diamond

    Around 2016, the price of synthetic diamond gemstones (e.g., 1 carat stones) began dropping "precipitously" by roughly 30% in one year, becoming clearly lower than that of mined diamonds. [124] As of 2017, synthetic diamonds sold as jewelry were typically selling for 15–20% less than natural equivalents; the relative price was expected to ...

  6. Letseng diamond mine - Wikipedia

    en.wikipedia.org/wiki/Letseng_diamond_mine

    On 21 September 2008 Gem Diamonds, Ltd. announced that it found a 95.6 grams (478 carats) diamond of high quality, making it the 20th largest diamond ever found. It is a type II D colour, with potential to yield a 30 grams (150 carats) cut stone.

  7. Diamond cutting - Wikipedia

    en.wikipedia.org/wiki/Diamond_cutting

    For instance, a 2.20-carat (440 mg) octahedron may produce (i) either two half-carat (100 mg) diamonds whose combined value may be higher than that of (ii) a 0.80-carat (160 mg) diamond plus a 0.30-carat (60 mg) diamond that could be cut from the same rough diamond.

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