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2. Diamond (gemstone) - Wikipedia

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

   Since the per carat price of diamond shifts around key milestones (such as 1.00 carat (200 mg)), many one-carat diamonds are the result of compromising cut for carat. Some jewelry experts advise consumers to buy a 0.99-carat (198 mg) diamond for its better price or buy a 1.10-carat (220 mg) diamond for its better cut, avoiding a 1.00-carat (200 ...

3. Black, Starr & Frost - Wikipedia

   en.wikipedia.org/wiki/Black,_Starr_&_Frost

   2012: Black, Starr & Frost sold the Archduke Joseph Diamond, a 76-carat, D-color, internally flawless diamond, the largest D color internally flawless Golconda diamond in the world for $21.5 million at Christie's Geneva Magnificent Jewels auction, [18] setting three world records for the sale of a colorless diamond.

4. Graff (jewellers) - Wikipedia

   en.wikipedia.org/wiki/Graff_(jewellers)

   The Paragon diamond was acquired by Graff in 1989. The Paragon is a 7-sided diamond of 137.82 carats (27.564 g), cut, [13] [14] and was worn as part of "millennium" necklace of round, pink, blue and yellow diamonds by Naomi Campbell in 1999. [15] The Lesotho Promise was acquired as a rough 603-carat (120.6 g) stone for $12.4 million in 2006. [16]

5. Diamond - Wikipedia

   en.wikipedia.org/wiki/Diamond

   This slogan is now being used by De Beers Diamond Jewelers, [117] a jewelry firm which is a 50/50% joint venture between the De Beers mining company and LVMH, the luxury goods conglomerate. Brown-colored diamonds constituted a significant part of the diamond production, and were predominantly used for industrial purposes.

6. Cullinan Diamond - Wikipedia

   en.wikipedia.org/wiki/Cullinan_Diamond

   Cullinan Diamond. The Cullinan Diamond is the largest gem-quality rough diamond ever found, [2] weighing 3,106 carats (621.20 g), discovered at the Premier No.2 mine in Cullinan, South Africa, on 26 January 1905. It was named after Thomas Cullinan, the owner of the mine. In April 1905, it was put on sale in London, but despite considerable ...

7. Is This Diamond Necklace Responsible for Marie Antoinette's ...

   www.aol.com/diamond-necklace-responsible-marie...

   September 25, 2024 at 8:43 AM. A Marie-Antoinette-linked Necklace to Be Sold Cecil Beaton. As they say, a piece of jewelry has the power to tell many stories. This particular diamond necklace ...