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‘Perfect’ 100-carat diamond could sell for $25m at auction
![](https://www.jewelleryfocus.co.uk/wp-content/uploads/2015/04/100.20K-perfect-diamond-Sothebys-NY-April-20151-e1429622599533.jpg)
A ‘flawless’ 100-carat diamond is expected to fetch between $19m (£12.7m) and $25m (£16.7m) at a Sotheby’s auction in New York.
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