Sotheby’s, the world’s largest auction house, is auctioning a rare, 101.38-carat flawless diamond estimated to be worth $15 million, and cryptocurrencies are accepted. Biggest Auction House Accepts Cryptocurrencies Sotheby’s announced Monday that it is auctioning a rare, pear-shaped diamond on July 9 in Hong Kong that can be purchased with cryptocurrency. Established in 1744, Sotheby’s […]