Super Rare Black Diamond With Possible Outer Space Origin Sold for $4.5 Million in Crypto

Sotheby’s, the 277-year-old British auction house, has sold a super rare black diamond with potential outer space origins dubbed “The Enigma” for $4.5 million in cryptocurrency. The 555-carat diamond is estimated to be 1 billion years old. The diamond was declared the largest cut diamond in the world in the 2006 Guinness Book of World […]