Petra Diamonds
The Cullinan mine continues to produce large stones. The Cullinan Heritage, a white diamond, was discovered in September 2009. This stone was the 19th biggest uncut diamond ever found and was sold in February 2010 to Chow Tai Fook Jewellery for $35.5m, the highest price ever paid for an uncut diamond. The previous record was held by Gem Diamonds' Leseli La Letšeng, which was bought for $18.4m by Graff Diamonds in December 2008.
Cora Sun-Drop Diamond
The Cora Sun-Drop Diamond is the largest known yellow pear-shaped diamond, weighing . It was sold for $10.9 million at Sotheby's auction in Geneva and set a world record price for a yellow diamond.