The Wittelsbach Graff Diamond 31.06 carats

Most Expensive Diamonds No. 7 - The Wittelsbach Graff Diamond

A clear, expert guide from the Monroe Yorke Diamonds team.

By Sandy Maxwell Updated June 2026 1 min read

Seventh on this list of most expensive diamonds is The Wittelsbach - Graff Diamond, worth $23.4 million. Again, this is a fancy deep blue diamond with an internally flawless grading.

Well, you'd expect at least that for over $23 million. This stunning diamond is thought to originate from the mines of the former Indian kingdom of Golkonda - exotic indeed.

The diamond is also know as Der Blaue Wittelsbacher and weighs 7.11 grams and 35.56 carats. The diamond was purchased by Laurence Graff, a London based jeweller, from a diamond sale at Christies in London, United Kingdom.

Image curtesy of Graff Diamonds

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Written & reviewed by the Monroe Yorke Diamonds team

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