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Petra starts 2021 with a 299-carat white diamond discovery

Petra Diamonds has produced a 299 carat Type IIa white gem-quality diamond at its Cullinan mine in South Africa.

It said the diamond was recovered this month and it is expected to be sold during the company's next tender in February.

Petra said the 299 carat stone was the third-largest high-quality white diamond recovered at Cullinan mine since Petra acquired its stake in 2008.

The other largest high-quality stones were the 507-carat Cullinan Heritage and the 424-carat Legacy of the Cullinan Diamond Mine.

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