largest round Brilliant Cut diamond ever put on auction. Sold on November 14, 2007 at Sotheby’s in Geneva for $16.2 million, the second-highest price ever paid for a diamond on auction. Took 2 years to cut.
Cross of Asia
discovered in 1902 in South Africa as a 280-carat (56 g) crystal. At first diamond was cut to 142 carats (28 g), and next the cut was three times changed to 112 carats (22 g), a cushion-cut of 109.28 carats (the weight Lawrence Copeland’s “Diamonds – Famous, Notable and Unique” lists it at) measuring 1⅛ × ⅞ × ⅝ inches, and finally into a radiant-cut gem of 79.12 carats (15.82 g) to eliminate all flaws. It is Fancy Yellow and Internally Flawless.
the largest rough gem-quality diamond ever found at 3106.75 carats (621.35 g). It was cut into 105 diamonds including the Cullinan I or the Great Star of Africa, 530.2 carats (106.04 g), and the Cullinan II or the Lesser Star of Africa, 317.4 carats (63.48 g), both of which are now part of the British Crown Jewels.
De Young Red Diamond
weighing 5.03 carats (1.01 g), the third-largest known red diamond, it was donated to the Smithsonian Institution National Museum of Natural History.
45.52 carats (9.10 g), is a Fancy Dark Grayish-Blue diamond and supposedly cursed. Almost certainly cut from the French Blue Diamond.
at 203.04 carats (40.61 g) is the second-largest colorless (grade D), flawless diamond.
an Indian mogul cut rumored to have served as the eye of a Hindu statue, and currently is part of the Kremlin diamond fund, weighing approximately 190 carats (38 g).
Cullinan Heritage Diamond
set the record for the highest price ever paid for a rough diamond in February 2010 when it was sold for $35.3m (£23m) to a Hong Kong jeweller. Petra Diamonds mined the stone in 2009 at their Cullinan Diamond Mine (formerly the Premier Mine) in South Africa.
Golden Jubilee Diamond
the largest faceted diamond ever cut at 545.67 carats (109.13 g)
Steinmetz Pink Diamond
modified oval brilliant cut (step cut crown, brilliant pavilion), largest known fancy vivid pink, at 59.60 carats (11.92 g).