Gem Diamonds has recovered another 100 carat plus rough diamond this year.
The recovery of the D colour type IIa stone shortly after the recovery of a 910 carat D colour IIa rough diamond from Letšeng last week.
Gem Diamonds began extracting ore from a higher grade part of Letšeng last year, resulting in the increase of large stones.
Gem Diamonds Letseng mine is located in the mountainous kingdom of Lesotho in southern Africa.