Auction house giant Sotheby’s announced Monday that a rare pear-shaped diamond will be up for sale in the coming month, but with a twist: the buyer could pay for their winnings in cryptocurrencies, according to Reuters. Up for sale to the highest bidder is a 101.38-carat flawless diamond, known as The Key 10138. This happens […] The post Sotheby lists rare diamond for $15M: buyer must pay in cryptos appeared first on Invezz.