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Blog - Grand Auctions

The Cullinan I Diamond

Cullinan I diamond

Continuing our countdown of the world’s largest cut diamonds, we have the Cullinan I in second place. The Cullinan I was one of nine major stones cut from an enormous piece of rough found in the Premier Mine in South Africa in 1905. It was the largest piece of gem quality rough ever discovered. For more information on the rough stone and how it was found, see our blog, The Cullinan II Diamond.

Star of Africa

Also known as the Star of Africa, the Cullinan I measures 53 mm x 44 mm x 29 mm, has 76 facets and weighs 530.20 carats. It was placed by King Edward VII in the Sovereign's Royal Sceptre as part of the Crown Jewels, and it is now on display in the Tower of London. As for its worth, some have estimated it at over £25 million!

Find out about the world's largest diamond.  

If you have any diamonds that you wish to have valued then please contact Simon Rufus, diamond grader at Grand Auctions, Folkestone, Kent.

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