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.

No Golconda Blue, but Christie’s still Raises $72m

Christie's Geneva sold 100 per cent of lots at its Magnificent Jewels yesterday (14 May) and raised[…]

Tanzania’s Williamson Diamonds goes totally Pink

London-listed and South Africa-active Petra Diamonds has sold its entire shareholding in Williamson Diamonds of Tanzania, plus[…]

Sierra Leone’s largest diamond miner shuts down, laying off more than 1,000 workers

Koidu Limited, Sierra Leone’s largest diamond producer, has halted operations and laid off nearly its entire local[…]

$3.3m Loss as Brilliant Earth Customers Spend Less

Brilliant Earth, the US-based "ethical jeweler", reported a $3.3m net loss for the first quarter of 2025,[…]

Rare 10-Carat Blue Diamond Could Fetch $20 Million at Sotheby’s Geneva Auction

A remarkable 10-carat blue diamond, dubbed the “Mediterranean Blue Diamond,” is expected to achieve up to $20[…]

Auction House Pulls Fake Pink Diamond from Sale

Auction House Pulls Fake Pink Diamond from Sale

US Watch and Jewelry Sales Steady Again in March

Watch and jewelry sales in the US remained steady in March, with a slight overall increase of[…]

De Beers Boss Says Trump’s Diamond Tariffs Do Nothing for U.S. Jobs

De Beers CEO Al Cook says Trump’s diamond tariffs hurt U.S. consumers, not jobs. Learn why the[…]

De Beers Sale on Right Track, says Botswana Vice President

Botswana's vice president says he's confident that a new buyer will be found for De Beers by[…]

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