Sotheby's jewellery auction in Geneva set a new world record for any coloured gemstone when the exceptional Sunrise Ruby sold for an astonishing $30.3 million. More than tripling the previous record, it is officially the most expensive ruby in

Sotheby's jewellery auction in Geneva in May 2015 set a new world record for any coloured gemstone when the exceptional Sunrise Ruby sold for an astonishing $30.3 million. More than tripling the previous record, it is officially the most expensive ruby in the world to date at over $1 million per carat.

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