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22 December 2011
» Petra Diamonds sells 4.8-carat blue diamond from Cullinan for $1.45 million
Diamond miner Petra Diamonds has announced the sale of a 4.8-carat blue diamond from its Cullinan mine for $1.45 million, equivalent to more than $300,000 per carat.
The diamond was sold at the firms most recent tender earlier this month.
The firm said that it is the highest amount it has achieved for any rough diamond it has sold on a per carat basis.
Petra is also confident that it is one of the highest values per carat ever achieved on the sale of a rough diamond by any rough diamond producer. Cullinan is renowned as the world’s only reliable source of blue diamonds and this sale demonstrates how rare and desirable they are to the international market.