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PRECIOUS METALS

Rio opens diamond bidding ring

RIO Tinto’s annual Argyle Pink Diamonds Tender has been launched during a world exclusive preview at the Sydney Opera House, with the miner saying this year’s collection includes some of the most “vivid pink and red diamonds” ever unearthed from the Western Australian Argyle mine.

Mining Monthly Magazine
Fancy red diamonds from Rio's Argyle mine in Western Australia.

Fancy red diamonds from Rio's Argyle mine in Western Australia.

The 2015 Tender, known as the “Connoisseur’s Collection”, comprises 65 diamonds weighing a total of 44.14 carats, including four fancy red diamonds, and is expected to attract global demand. The collection...

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