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[…]

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-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[…]

See The World’s Rarest Diamonds, Worth a Total of $100 million, in Abu Dhabi

The exhibition is incredibly exciting for the simple reason that to purely just have eight diamonds of[…]

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[…]

Qatari Royal Family in Court over Idol’s Eye Diamond

A legal battle over the Idol’s Eye, a 70.21 carat very light blue, eye shaped Golconda diamond,[…]

Blue and Pink Diamond Ring Fetches $3.7m

Blue and Pink Diamond Ring Fetches $3.7m

Petra’s Prices Boosted $8.2m Blue

The 14.76ct exceptional color and clarity blue diamond recovered from Cullinan, South Africa

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