Cullinan diamond before being cut (replica). 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.
Catawiki Online-Auktionshaus: Topaz 6,54 ct
What Are the Rarest Diamonds
2.52-carat Fancy Vivid Green Diamond sold at Sotheby's
Catawiki Online-Auktionshaus: Citrin 1,76 ct
The Heart of Eternity is 27.64 carats. It was found in a mine in South Africa and it is a “Fancy Vivid Blue Colour” rated the Gemological Institute of America, which makes it an extremely rare diamond. The Heart of Eternity is a member of an exceedingly rare class of coloured diamonds. It was found in the “Premier Diamond Mine” of South Africa.
Catawiki Online-Auktionshaus: Prehnit 3,73 ct
Catawiki Online-Auktionshaus: Peridot 7,34 ct
Catawiki Online-Auktionshaus: Sky Blue Topas 3,47 ct