Biggest white diamond ever auctioned fetches $18.8 million - Africanews English

The Rock, the biggest white diamond ever auctioned, sold for a hammer price of 18.6 million Swiss francs ($18.8 million), far short of the record for such a jewel

The Rock, the biggest white diamond ever auctioned, sold for a hammer price of 18.6 million Swiss francs ($18.8 million) on Wednesday, far short of the record for such a jewel. The 228.31-carat ston… [+2473 chars]

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