Petra Diamonds mines 138-carat white diamond

Johannesburg - Petra Diamonds said on Wednesday it recovered a 138.57 carat white diamond at the historic Cullinan mine near Pretoria in South Africa.

The diamond is classified as type IIa, D colour, meaning it has high clarity, and would be offered for sale in Johannesburg later this month, the diamond miner said.

The company had earlier this year sold a 121.26 carat white diamond recovered from the same mine for $6m to a joint venture between Nemesis International and Golden Yellow Diamonds.