Gem Diamonds finds 233 carat rough at Letšeng mine

The latest diamond over 100 carats recovered at Letšeng mine. (Image courtesy of Gem Diamonds.)

Africa-focused Gem Diamonds (LON:GEMD) has found a 233 carat type II white rough at its iconic Letšeng mine in Lesotho.

The finding follows the discovery of a 442 carat type II white rough at the same mine last month.

Since acquiring Letšeng in 2006, Gem Diamonds has found more than 60 white gem quality diamonds over 100 carats each, which makes the mine the world’s highest dollar per carat kimberlite diamond operation.

It’s the second type II white diamond over 100 carats recovered in Lesotho in ten days

At an average elevation of 3,100 metres (10,000 feet) above sea level, Letšeng is also one of the world’s highest diamond mines.

The biggest rough ever found was the 3,106-carat Cullinan, dug near Pretoria, South Africa, in 1905. It was later cut into several stones, including the First Star of Africa and the Second Star of Africa, which are part of Britain’s Crown Jewels held in the Tower of London.

Lucara Diamond’s (TSX:LUC) 1,758-carat Sewelô, found in 2019, holds the second-biggest diamond in record title, while the same company’s 1,109-carat Lesedi La Rona and the 995-carat Excelsior are considered the third- and fourth-largest diamonds ever found.

In October, Gem Diamonds announced that the Lesotho government had renewed the Letšeng mining lease for another 10 years, and granted it exclusive rights for further renewals. 

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