The Apollo blue diamond and the Artemis pink diamond earrings are displayed at Sotheby's auction rooms in London, Monday, April 10, 2017. The earrings, the most valuable ever to appear at auction, are estimated at 62- 87 million UK pounds (50-70 million US dollars) and will be auctioned on May 16 in Geneva. (Photo by Kirsty Wigglesworth/AP Photo)
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