The two rough diamonds, including 162.06 carat type II diamond and a 161.74 carat type I diamond, are each expected to achieve high prices at Letšeng’s February tender.

Gem Diamonds CEO Clifford Elphick said, "We are pleased to see the Letšeng mine continue to deliver such large high quality white diamonds as the mine confirms its position as the world’s foremost source of exceptional large diamonds."

Gem Diamonds owns 70% of the Letšeng mine in Lesotho as well as the Ghaghoo mine which is being in developed in Botswana.

Since acquisition of the mine in 2006, the company has recovered four of the top twenty largest white gem quality diamonds recorded.