Petra Diamonds said it earned just above $10 million from the sale of an “exceptional” 23.16 carat pink diamond recovered from the Williamson mine in Tanzania last month.
The stone attracted an average price of $433,938 per carat.
It said in a statement that the rough diamond was sold into a partnership and the company had also retained a 20 percent interest in the sales proceeds of polished diamonds.
 “This sale result affirms that the market for high quality coloured diamonds remains robust. Pinks of this size and quality are incredibly rare, but the Williamson mine is known to produce them from time to time,” said company chief executive Johan Dippenaar.
“This bodes well for the future of the mine as we continue to ramp up production and optimise the processing plant. Given the exceptional nature of this pink stone, we are delighted to retain exposure to the uplift in the polished.”
Mathew Nyaungwa, Editor in Chief of the African Bureau, Rough&Polished
 

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