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.
Princie Diamond
The Gemological Institute of America characterizes the Princie Diamond as fancy intense pink, natural color, VS2 clarity, Type IIa. The Princie diamond is at this time the largest Golconda-type fancy intense pink diamond ever to be graded at the Gemological Institute of America. The Princie also has the property that when exposed to ultraviolet light it displays bright orangey-red fluorescence. According to the Gemological Institute of America this kind of reaction to ultraviolet light is typical of diamonds of Indian origin. Of more than 7 million diamonds that have gone through the Gemological Institute of America's laboratory, no more than 40 exhibited this phenomenon and the Princie is the largest pink diamond that possesses it.