Model poses with the Beau Sancy diamond during a Sotheby"s auction press preview in Geneva
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One of world's oldest diamonds sells for $10m

One of the world's oldest and most famous diamonds has been sold for almost $10 million in Geneva.

The 35 carat Beau Sancy diamond is at least 400 years old, and until now has been owned only by members of Europe's royal families.

Imogen Foulkes reports from Geneva.

  • 16 May 2012
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