The Pink Star diamond, the most valuable cut diamond ever offered at auction is displayed by a model at Sotheby's auction rooms in Hong Kong, Wednesday, March 29, 2017. It is the largest internally flawless fancy vivid pink diamond ever graded by the GIA. The 59.60-carat oval pink diamond was auctioned for 0.553 billion Hong Kong dollars (71.2 million U.S. dollars) at Sotheby's Hong Kong jewels and jadeite spring sale on Tuesday, setting a new world record for any diamond or jewel.(Photo/Agencies)
