Petra Diamonds Sells 25.5-Carat Blue Diamond For $17 Million
May 24, 13
(IDEX Online News) – Petra Diamonds said a 25.5-carat blue diamond recovered from the Cullinan mine in South Africa in April has been sold for $16,910,180, or $663,144 per carat, "following a highly competitive sales process." 
Petra CEO 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.”