Petra Diamonds Receives Almost $17 Million for 25.5-Carat Blue Diamond Found at Cullinan

A 25.5-carat blue diamond found at the Cullinan mine in South Africa belonging to Petra Diamonds in April has been sold for $16,910,180, or $663,144 per carat.

Chief Executive Officer Johan Dippenaar said: “We are delighted to have concluded such a successful sales process for this important blue diamond.

"The process was highly competitive in terms of bids received, due to the incredible rarity of a blue stone of such size and quality.

"This result further serves to highlight the Cullinan mine’s unique position as the world’s most important source of blue diamonds.”