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.

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[…]

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[…]

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

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

Sotheby’s Jewelry Watch Auction Sells Out in Under an Hour

Sotheby’s Jewelry Watch Auction Sells Out in Under an Hour

Sotheby’s Hong Kong Watch Sale Sees Two World Records

Two timepieces set new auction records at the most recent Sotheby’s watch sale in Hong Kong

Colored Diamonds and Jadeite to Shine at Sotheby’s Hong Kong

Colored Diamonds and Jadeite to Shine at Sotheby’s Hong Kong

Sotheby’s Scores over $6M at Hong Kong Jewelry Auction

Sotheby’s in Hong Kong, smashing its high estimate.

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