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.

Sotheby’s Rakes In $57.5M for De Beers Blue

 A record blue diamond co-owned by De Beers far outstripped its presale estimate in a stand-alone sale[…]

Colored Diamonds Set to Sparkle at Sotheby’s

A blue diamond ring is among the top lots at the Sotheby’s Magnificent Jewels sale in New[…]

20-Carat ‘Okavango Blue’ Diamond Goes on Display

The public can now feast their eyes on a big blue diamond thanks to New York’s American[…]

Blue rough diamond fetches $40 million

Petra Diamonds Ltd. sold a 39.3-carat blue gem for more than $40 million, making it one of[…]

Petra puts “exceptional” 39-carat blue diamond up for sale

South Africa’s Petra Diamonds has put a 39.34 carat Type IIb gem recovered at its iconic Cullinan[…]

The Perfect Palette diamonds. Christie’s
Fancy Colour Diamond Trio Fetches $8M at Christie’s

Three rings featuring diamonds with fancy-vivid color stole the show at the Christie’s Magnificent Jewels auction, selling[…]

Petra De Beers
De Beers Buys Petra Blue Diamonds for $40M

De Beers has purchased five rough blue diamonds from Petra Diamonds for more than $40 million in[…]

rare blue diamonds
Rare Rough Blue Diamonds

Recovered from the famous Cullinan Mine in South Africa, these blue diamonds are among the world’s most[…]

A 20.08-carat Type IIb blue diamond recovered at Cullinan.
Petra to sell blue diamonds recovered at Cullinan

Petra Diamonds (LON: PDL) announced the launching of a special tender process for the Letlapa Tala Collection,[…]

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