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Historic blue diamond auction exceeds expectations — sold for $6.7 million

Cecilia Jamasmie | May 15, 2018 | 11:05 am Asia Europe Diamond 

A 6.16-carat blue diamond that was secretly passed down through European royalty over three centuries has fetched $6.7 million at a Sotheby’s auction in Geneva — $1.4 million more than what experts expected it to be sold for. The pear-shaped,...

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