Gem Diamonds Limited explores for and develops diamond mines. The company owns 70% interest in the Let?eng mine located in the Kingdom of Lesotho; and 100% interest in the Ghaghoo mine located in Botswana. It also manufactures, sells, and markets rough and polished diamonds. In addition, the company provides technical, financial, and management consultancy services. It serves diamantaires and manufacturers in New York, Belgium, Israel, India, China, South Africa, the United Kingdom, the Middle East, and Switzerland. Gem Diamonds Limited was founded in 2005 and is headquartered in London, the United Kingdom.