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Diamond producer Petra Diamonds’ geological team has gained access to the kimberlite deposit between the 60 m level and 72 m level at its Koffiefontein project, in the Free State, owing to diamond ...

LONDON, July 28 (Reuters) - AIM-listed miner Petra Diamonds on Monday reported that mine revenue soared 359 percent to $76.6 million in the year to June 30. The substantial revenue growth was mainly ...

"Given the gross resource base of c. 5.25 million carats as 30 June 2021, including c 1.11 million carats in the indicated resource category associated with underground resources, it may be feasible ...