Gem Diamonds Limited is a diamond mining company that offers a wide range of services. The company mines kimberlite and lamproite in Lesotho and Australia, while also handling the exploration and development of projects in Angola, Australia, Botswana, the Central African Republic, Lesotho, Mauritius, and Indonesia. Experts suggest that this diversified business strategy has enabled the company to ride out past market challenges and establish itself as an industry leader.