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'Ocean Dream' blue-green diamond sells for more than $17 million at Christie's auction in Geneva | Collector
'Ocean Dream' blue-green diamond sells for more than $17 million at Christie's auction in Geneva
Local 4 WDIV Detroit

'Ocean Dream' blue-green diamond sells for more than $17 million at Christie's auction in Geneva

Christie's says a 5.5-carat triangular-cut diamond billed as the largest fancy vivid blue-green diamond known to exist has sold for more than 13.5 million Swiss francs or $17.3 million.

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