Rio’s biggest pink diamond gets the cut

The biggest pink diamond ever found by mining giant Rio Tinto is being cut and polished in a painstaking 10-day process.

The 12.76 carat gem to be known as the Argyle Pink Jubilee was found at Rio Tinto’s Argyle mine in the remote east Kimberley region of Western Australia, which produces more than 90 per cent of the world’s supply of pink diamonds.

The gem is being cut and polished as a single stone by Richard How Kim Kam, who has worked for the company for 25 years — via

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