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.

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[…]

10 Carat Burmese Ruby Ring Sells for USD $5.5 Million at Sotheby’s Auction

A stunning 10.33 carat Burmese ruby fetched an impressive $5.5 million

New York Jewelry Auctions Top $70 Million In June, Led By Diamonds

New York Jewelry Auctions Top $70 Million In June, Led By Diamonds

Latest Comments

No comments to show.