London-listed Petra Diamonds has recovered a 342.92 ct Type IIa white diamond of “exceptional” quality, in terms of both its colour and clarity, at the Cullinan mine in South Africa.
The diamond is likely to be sold at the company’s upcoming tender in September.
Petra earlier this month reported that the Cullinan mine had delivered a strong performance in the financial year ended June 30.
The mine, in April, also yielded a 39.34 ct “exceptional” Type IIb blue diamond, which was sold for more than $1-million a carat in July. A partnership between diamond miners De Beers and Diacore had bought the diamond for $40.1-million.