History of Diamond Grading in Australia

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The 9.51 carat Mellon Blue Fancy Vivid Blue pear shaped cut diamond
Rare ‘Mellon Blue’ Diamond Fetches $25.5 Million at Christie’s Geneva Market Reflects Shifting Demand for Coloured Diamonds

The legendary Mellon Blue Diamond a 9.51-carat fancy vivid blue, internally flawless gem sold for $25.5 million[…]

‘The Mellon Blue is one of the finest coloured stones
‘Mellon Blue’ Diamond Expected to Fetch Up to $30 Million at Geneva Auction

Geneva’s prestigious November auction season is set to dazzle the world once again, with the spotlight firmly[…]

31-Carat ‘Desert Rose’ Diamond Expected to Fetch $7 Million at Abu Dhabi Auction

Sotheby’s is set to showcase one of the world’s rarest diamonds during its upcoming series of luxury[…]

No Golconda Blue, but Christie’s still Raises $72m

Christie's Geneva sold 100 per cent of lots at its Magnificent Jewels yesterday (14 May) and raised[…]

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[…]

Rare 10-Carat Blue Diamond Could Fetch $20 Million at Sotheby’s Geneva Auction

A remarkable 10-carat blue diamond, dubbed the “Mediterranean Blue Diamond,” is expected to achieve up to $20[…]

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[…]

5.72-ct Blue Diamond Sells for $8.8m

A 5.72 carat fancy intense blue diamond beat its high estimate and sold for $8.8m yesterday (10[…]

Christie’s sells rare blue diamond for over $40m USD

The 17.61 carat, pear-shaped Bleu Royal diamond, set in a ring, fetched $43.8 million, they said. It[…]

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