Blue diamond new world record A blue diamond set a record price for any jewel in auction when it went under the hammer for $58 million in a Christie’s sale in Geneva. The Oppenheimer Blue, at 14.62 carats, was estimated to be worth as much as $46 million. The stone now belongs to a private […]
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World Auction Record per Carat for a Ruby World Auction Record. Christie’s Hong Kong sale of Magnificent Jewels realised HK$747,894,000 / US$96,904,062, selling 80% by lot and 83% by value. The Crimson Flame, an exceptionally rare Burmese ruby, sold for HK$142 million / US$18 million, setting a world auction record per carat of US$1.2 million. […]