History of Diamond Grading in Australia

Blogs & News

Explore DCLA’s legacy as Australia’s leading diamond authority. Learn our history, meet the founders, and discover our unmatched grading expertise.

Rio Tinto ends diamond era with historic final auction

Rio Tinto is auctioning its final collection of rare diamonds from its closed Argyle mine in Australia and the soon-to-shutter Diavik operation in

Rio Tinto’s Beyond Rare diamond tender delivers strong results

The auction, which featured some of the world's most coveted natural fancy coloured diamonds, also showcased the[…]

Rio Tinto unveils Argyle Rose heirloom piece

Rio Tinto has unveiled the latest heirloom piece of Argyle Pink Diamonds jewellery, featuring one of the[…]

How are diamonds priced ?

Polished diamond prices are derived from a variety of factors, including supply and demand, the quality and[…]

Tiffany Buys Some of a Legendary Diamond Mine’s Last Finds

The new Tiffany Collection comprises 35 gems, including an unusual red stone, from the Argyle Diamond Mine[…]

Rio Tinto Launches Business for Argyle Pinks

Rio Tinto has debuted a new strategy that will enable it to “protect the provenance” of its[…]

Final Argyle Pink Tender Sees Record Result

Rio Tinto achieved record-breaking figures at its 2021 Argyle Pink Diamonds Tender, with prices strong amid dwindling[…]

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