The Group owns the Letšeng diamond mine in Lesotho and the Ghaghoo mine in Botswana, with Head Offices in the United Kingdom and Sales Marketing and Manufacturing capabilities in Belgium.

The Letšeng mine is renowned for its production of large, top colour, exceptional white diamonds, making it the highest average dollar per carat kimberlite diamond mine in the world.

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Latest at Gem Diamonds

15 October 2019

Mining lease renewal is testament to Gem Diamonds’ sustainable development contribution to Lesotho

07 October 2019

Gem Diamonds unaffected by any power supply issues

04 October 2019

Letšeng mining lease renewal

05 September 2019

Half Year 2019 results

A 127 carat D colour type II white diamond recovered at Letšeng on 11 September 2019.

A 127 carat D colour type II white diamond recovered at Letšeng on 11 September 2019.



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05 September 2019

Gem Diamonds Half-yearly Report 2019

The first half of 2019 (the Period) started exceptionally well, with the recovery of a 13.32 carat pink diamond which sold for a Letšeng record of US$656 934 per carat, reaffirming the unique quality of the mine’s diamond production.

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Our Strategy

Our continuous evolution has enabled an enhanced focus on maximising value from our operations, enabling the delivery of sustainable returns for our investors while optimising the benefit of our communities and minimising the impact on our environment.

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Business transformation

We are shaping our business for a profitable and sustainable future for the benefit of all our stakeholders by enhancing the efficiency of our operations. The Business Transformation process is progressing well and the cumulative 2021 target of US$100 million in revenue, productivity and cost savings is on track.

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Technology and innovation

Gem Diamonds has made significant progress on the identification, validation and testing of technologies from various industries to complement its innovation drive of early detection and non-mechanical means of liberating diamonds.

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