Building a world-class diamond company

Operations

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  Cullinan

  One of the world's most celebrated diamond mines and a source of large, high-quality Type II gem diamonds. It earned its place in history with the discovery of the Cullinan diamond in 1905, the largest rough gem diamond ever found at 3,106 carats.

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  Finsch

  Finsch is one of the world’s important diamond mines and South Africa’s second largest diamond operation by production. The mine benefits from state-of-the-art mining infrastructure, including a modern processing plant which was recently upgraded at a total cost of approximately US$100 million.

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  Williamson

  Williamson is the world’s largest economic kimberlite by surface area at 146 hectares in size. Regularly produces large high quality stones and is a source of rare and extremely valuable fancy pink diamonds.

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  Koffiefontein

  Koffiefontein is one of the world’s top diamond mines by average value per carat and produces exceptional white and coloured diamonds, a regular proportion of which are of between 5 and 30 carats.

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  Kimberley Underground

  Kimberley Underground comprises three kimberlite pipe mines in close proximity: Bultfontein, Dutoitspan and Wesselton. These mines have a history of producing large diamonds and fancy yellows.

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  Fissure Mines

  The three fissure mines – Helam, Sedibeng and Star – were acquired when Petra merged with ASX quoted Crown Diamonds NL in May 2005. Fissures are the narrow root zones of kimberlites once the main part of the orebody has been eroded away.

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  Kalahari

  In September 2005, Petra acquired 100% of Kalahari Diamonds Limited and subsequently became the holder of a large land area under diamond prospecting licence in Botswana, all of which is "on craton" (the geological formation known to host diamonds).

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