Petra Diamonds Ltd. engages in supplying rough diamonds to the international market. It operates through the following segments: Mining, Corporate, and Beneficiation. The Mining segment is involved in the extraction and sale of rough diamonds from mining operations in South Africa and Tanzania. The Corporate segment focuses on the administrative activities in the United Kingdom. The Beneficiation segment include beneficiation activities in South Africa. The company was founded by Adonis Pouroulis in 1997 and is headquartered in London, the United Kingdom.