The Apollo and Artemis Diamonds, the most valuable earrings ever to appear at auction, unveiled at Sotheby's in London, April 10, 2017. The 14.54-carat Fancy Vivid Blue diamond and the 16-carat Fancy Intense Pink diamond will be offered as individual lots with a combined estimate of $50 million - $70 million at the Magnificent Jewels and Nobel Jewels sale in Geneva on May 16, 2017. (Photo/Agencies)
