Petra Diamonds Ltd, founded in 1997 by Adonis Pouroulis, is a diamond mining group with interests in 8 producing mines across Tanzania and South Africa, as well as a Botswana based exploration programme. The companies goal has moved from exploration to production, making them one of Africa’s biggest independent diamond producers.

The company owns the Cullinan Diamond Mine, infamously known for producing the largest polished and rough diamond in the world.

In South Africa, Petra Diamonds operates 4 underground kimberlite diamond producing mines, which include Finsch; Kimberley Underground; Cullinan and Koffiefontein.