white diamond

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Famed Mine Spits Out 121-Carat Diamond

Petra finds white gem in same mine where British crown jewels diamonds were discovered

(Newser) - From the Cullinan mine in South Africa emerged in 1905 what still ranks as the world's largest rough diamond: the Cullinan diamond , a 3,106-carat gem that was cut down into smaller stones and incorporated into the British crown jewels. Now Petra Diamonds announces it's made another sparkling... More »

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