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Petra ditches small diamonds

Diamond miner outlines Cullinan large diamonds plan amongst South African and Tanzanian troubles

Alex Hamer

In the six months to December 31, 2017, Petra produced 2.2 million carats, 10% more year-on-year. Sales were lower (5% to 1.8Mct) partly because of the 71,000ct package from Williamson Tanzania is still...

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