The exceptional D colour Type IIa gem was recovered in March from the company’s iconic Cullinan mine, the same that yielded the biggest diamond ever in 1905.
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Find is the third Type II D-colour gem-quality diamond weighing more than 100 carats recovered since March and the fourth such rock discovered in the current financial year.
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The companies say that their OptiMine Analytics technology is particularly useful when it comes to dealing with failing equipment and regular maintenance.
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The discovery comes less than a month after Petra found a 100.83 carat gem-quality diamond at the same mine.
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The diamond miner said the appointment of a new chair was “not appropriate” at this time.
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The diamond miner said the appointment of a new chair was “not appropriate” at this time.
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It follows the recent recovery of a 6.12 carat Type II blue stone at the same mine.
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