Blue Diamond

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FILE - In this Thursday, May 11, 2017 file photo, a Sotheby's employee displays the Apollo blue diamond and the Artemis pink diamond earrings during a preview at the Sotheby's, in Geneva, Switzerland. Sotheby's sold a pair of pear-shaped diamond earrings at a hammer price of about $51 million Tuesday, May 16, 2017, though the 14.54-carat flawless Fancy Vivid Blue diamond that was the auction's highlight fell short of the expected range. (Martial Trezzini/Keystone via AP, File)