Mining group Petra Diamonds has discovered a 507.55 carat white diamond at South Africa’s Cullinan mine, one of the largest high-quality rough diamonds ever found, the firm said on Tuesday.
“This spectacular gemstone was recovered on Thursday 24 September and is currently with experts for analysis,” said a statement released by the London-listed company which operates [...]

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Oz Minerals, the merged Oxiana and Zinifex, has reassured shareholders of the company’s fundamentals and prospects after a significant drop in the group’s share price.
The share price of the merged company - which legally was Oxiana acquiring the Zinifex business - has dropped more than 67% from $3.90, when the merger was announced in March, [...]

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