Petra Diamonds reported that its revenue following the sale of an "exceptional" blue diamond weighing 29.62 carats was $ 25.6 million, equivalent to $ 862,780 per carat. This diamond was mined last month at a diamond mine in Cullinan, located in South Africa.
In a message sent to Rough & Polished by e-mail, it is said that the buyer of the diamond was the company Cora International NY, acting through the South African firm Golden Yellow Diamonds.