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.

Christie’s to Sell the Red Cross Diamond

One of the world’s largest yellow diamonds weighing 205.7 ct and known as the Red Cross Diamond[…]

Petra to sell 32-ct Pink Diamond from Re-opened Mine

Petra is to offer a 32.32-carat pink diamond at its first tender of goods from the Williamson[…]

Petra Diamonds mulls selling Williamson mine

South Africa’s Petra Diamonds is considering selling its Williamson mine in Tanzania, even as it continues to[…]

Petra Diamonds in Partnership Deal With Stargems on White And Blue Diamonds

Petra Diamonds Limited has sold a 342.92 carat Type IIa white diamond and an 18.30 carat Type[…]

Petra Diamonds finds 342-carat rough at Cullinan mine

South Africa’s Petra Diamonds has recovered a 342.92-carat Type IIa white rough at its iconic Cullinan mine.[…]

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[…]

39.34 carat blue diamond recovered
Petra finds 39-carat blue diamond at Cullinan mine

South Africa’s Petra Diamonds has found yet another big rock at its iconic Cullinan mine, a 39.34[…]

299.3-carat, type 11a, white gem-quality diamond
Petra sells 299 carat diamond for $12.18 million

Petra Diamonds has sold a 299.3 carat diamond recovered in January at its iconic Cullinan mine, in[…]

Petra Diamond’s Finsch mine in South Africa
Petra Diamonds’ investors back restructuring

Struggling Petra Diamonds (LON: PDL) said on Wednesday its investors have approved plans to restructure the business,[…]

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