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.

Apollo and Artemis diamonds
The Apollo and Artemis Diamonds: The Most Expensive Pair of Diamond Earrings Ever Sold

The Apollo and Artemis diamonds stand among the rarest gemstones ever discovered—extraordinary not only for their individual[…]

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.

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[…]

Al Capone’s Diamond-Studded Patek Philippe Pocket Watch Heads to Sotheby’s Auction

A dazzling piece of underworld history is heading to auction: Al Capone’s custom diamond-studded pocket watch, crafted[…]

Rare 10.3-Carat ‘Mediterranean Blue’ Diamond Sells for $21.5 Million at Sotheby’s Geneva Auction

rare 10.3-carat fancy vivid blue diamond, known as The Mediterranean Blue, has sold for an astonishing[…]

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