History of Diamond Grading in Australia

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

5.02 ct. fancy intense pink diamond
10 Carat Blue Diamond Expected to Achieve Over $6 Million at Sotheby’s High Jewelry Auction

A rare 10.02 carat fancy intense blue diamond is set to become the centrepiece of Sotheby’s highly[…]

Art Deco Cartier jewelry that once belonged to 1920's "supermodel" Phyllis Frank
Sotheby’s Sells Jewels of “First Supermodel”

Sotheby’s London is selling a private collection of rare Art Deco Cartier jewelry that once belonged to[…]

The flawless D-color unmounted Jwaneng 28.88 - cut from a 114.83-carat rough recovered at Botswana's Jwaneng mine
Diamond Debut for De Beers and Sotheby’s Collaboration

The sale of the Jwaneng 28.88 diamond later this month marks the start of a collaboration between[…]

Record Watch and Jewellery Sales Mark Strong 2025 at Sotheby’s

Sotheby’s has reported a standout performance in 2025, with watch and jewellery sales delivering robust year-on-year growth.

3.63-ct “Salt and Pepper” Pink Fails to Sell

The highlight of Sotheby's Fine Jewelry sale in New York - a rare 3.63-carat fancy vivid purple-pink[…]

The Desert Rose diamond
32ct ‘Desert Rose’ Diamond Sets Auction Record in Abu Dhabi

A remarkable 32-carat fancy vivid orangy-pink diamond has achieved a new auction record at Sotheby’s inaugural Collectors’[…]

Napoleon's Diamond Brooch
Napoleon’s Diamond Brooch Leads Sotheby’s Sale

Treasures that once belonged to Napoleon Bonaparte are to be offered for sale by Sotheby's Geneva on[…]

Sotheby's Paris
Best Jewelry and Watch Results at Sotheby’s Paris for Seven Years

Sotheby's sales of fine jewelry and watches in Paris raised over $10.9m (EUR 9.3m) last week -[…]

Unique Patek Philippe Sells for $4.3m

A unique Patek Philippe watch sold for $4.3m at Sotheby's New York - the highest price realized[…]

The 10.3 Carat ‘Mediterranean Blue’ Diamond Could

Fancy vivid blue diamonds exceeding 10 carats are among the rarest gemstones in the world, and Sotheby’s[…]

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