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Fancy-colored diamonds such as the deep-blue Hope Diamond are among the most valuable and sought-after diamonds in the world. In 2009, a 7-carat (1.4 g) blue diamond fetched the then highest price per carat ever paid for a diamond when it was sold at auction for 10.5 million Swiss francs (US$9.5 million at the time) which is in excess of US$1.3 ...
Blue diamonds comprise only about 0.02 percent of mined diamonds but include some of the world's most famous jewels. Diamonds are a crystalline form of pure carbon, forming under enormous heat and ...
The Blue Moon of Josephine is a 12.03 carats (2.406 g) blue diamond, described as flawless by experts, that was discovered in South Africa in January 2014 and was sold at a Sotheby's auction in Geneva in November 2015 at a record-setting price of $48.4 million (43.2 million Swiss francs plus fees). [1]
Another deep-blue diamond from Cullinan was auctioned for $10.8m last year and set a world record for the value per carat. [7] On 21 January 2014, Petra Diamonds announced recovery of a 29.6-carat (5.92 g) blue diamond. According to the current CEO, Johan Dippenaar, it is the "most significant blue diamond" to be recovered by Petra Diamonds ...
The Winston Blue is the name given to what was the largest flawless vivid blue diamond [1] [4] [5] bought by Harry Winston, Inc. (a wholly owned subsidiary of The Swatch Group from January 2013) on May 15, 2014, from an anonymous person for $23.8 million at Christie's Geneva Magnificent Jewels sale. The approximately $1.8003 million per carat ...
The Tereshchenko Diamond, sometimes known as the Tereshchenko Blue, is a 42.92 carat diamond of blue colour that is cut in the pear shape. The diamond is rare, belonging to the Type IIb diamond, and believed to originate from India. The Tereshchenko diamond is the second biggest blue diamond in the world.
[44] made their name selling genuine Blue-White diamonds, but others in the industry saw the opportunity to use the term to sell lower quality diamonds. By 1938, the term "Blue White" and the underlying concept that blue (i.e. fluorescence) added value to white (colorless) diamonds had become abused by too many unscrupulous dealers and the U.S ...
The Oppenheimer Blue is a 14.62-carat (2.924 g) vivid blue diamond that in May 2016 became the most expensive jewel ever sold at auction, until April 2017 when it was surpassed by the Pink Star diamond. [1] [2] [3] The diamond was named for its previous owner Philip Oppenheimer. [4] It is cut into a rectangle (emerald cut). [5]