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.

Emerald
Cartier Emerald And Diamond Ring Fetches $3.6 Million At Sotheby’s

A Cartier emerald and diamond ring blew past five fancy colored diamonds to become the top lot[…]

12.38-carat, fancy-pink diamond ring
Sotheby’s Nets $18M at Live New York Jewellery Sale

Sotheby’s garnered $17.9 million from its Important Jewels sale in New York, with a pink-diamond ring taking[…]

102.39-carat D-flawless oval diamond
102 Carat D Flawless Diamond Fetches $15.6 Million

A 102.39 carat D color flawless oval diamond was sold in a single lot auction for more[…]

The 118.88-carat Burmese sapphire and the 6.41-carat pigeon’s blood Burmese ruby.
Sotheby’s to Sell 119ct. Sapphire in Hong Kong

 Sotheby’s will sell a 118.88-carat, royal-blue, unheated Burmese sapphire in Hong Kong next week, the largest of[…]

102.39 carat D Colour Flawless Oval Diamond
Sotheby’s is set to auction off one of the rarest diamonds in the world

Sotheby’s is set to auction off a 102 carat diamond that could become the most expensive jewel[…]

3.01 carat fancy vivid blue diamond
No Buyer for 3ct. Blue Diamond at Sotheby’s

A 3.01-carat, fancy-vivid-blue diamond ring, carrying a high estimate of $6.3 million was among a number of[…]

3.01 carat fancy vivid blue diamond
3-Carat Blue Diamond Could Fetch $6.3 Million At Sotheby’s Geneva Auction

Live jewelry auctions are returning with the first one being held in Geneva by Sotheby’s on June[…]

88.22 Carat Oval Diamond
88 Carat Flawless Diamond Fetches $13.7 Million USD

$13.7 million for the flawless 88.22 carat diamond

Farnese Blue Diamonds
Royal Blue Diamond Surfaces After 300 Years

6.16 carat, fancy dark grey blue stone originally given to Queen Elisabeth Farnese of Spain

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