Name: Josephine Diamond Blue Moon - 12.03 Carat - Price: $48.4 million: This stone was discovered in a South African mine and was bought by Hong Kong-based billionaire Joseph Lau and named after his seven-year-old daughter.
Name - Blue Moon of Josephine Diamond | Carat - 12.03 | Price - $48.4 million: This stone was discovered in a South African mine and was bought by Hong Kong-based billionaire Joseph Lau and named after his seven-year-old daughter. (Picture: Sotheby's)