Tag Archives: Blue diamond

A rare blue diamond has sold for a record 10.5 million Swiss francs ($9.5m; £6.2m) at auction in Geneva.

A  rare blue diamond weighs 7.03 carats, is smaller than a penny piece, and is one of only a handful of blue diamonds in existence. The anonymous phone bidder has yet to name the gem, mounted on a platinum ring, auctioneers Sotheby’s said. The diamond was found in Cullinan mine in South Africa last year,…

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