Prices for the rarest stones from Rio Tinto’s defunct Australian mine have long outperformed mainstream investments ...

Diversified mining company Rio Tinto’s second Beyond Rare tender has achieved a strong result, underscoring the rarity and ...

Bids came in from 12 regions across Australia, Europe, Japan, Hong Kong, the Middle East, Singapore and North America, Rio ...

(IDEX Online) - A sale of "beyond rare" diamonds - primarily pink, red and violet stones from the Argyle mine - delivered ...

PERTH, Australia -- Rio Tinto's second Beyond Rare™ Tender: The Art Series 02 has delivered a strong result, reflecting the extraordinary rarity and unique provenance of the collection, together with ...

An eye-catching 7-carat emerald-cut pink diamond set in a ring will headline an upcoming auction in New York with an impressive presale estimate.

This rare pink diamond ... It is the fifth largest diamond recovered from the Lulo mine - a joint venture between Australia's Lucapa Diamond Company and the Angolan government.

A rare Russian pink diamond called the ‘ Spirit of the Rose ... Just this month, the biggest pink diamond mine in the world, Australia's Argyle deposit, stopped production because it has ...

A rare pink diamond has sold for HK$453.2 million (US$57.7 million) in Hong Kong, setting a record for price per carat paid at auction for any diamond or gemstone, according to Sotheby’s auction ...