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Rare rock star: Largest colored diamond ever to be offered at auction
10.12.2012. | A blockbuster rock boasting rare symmetry and polish will go under auction in New York. The 3.15 carat circular-cut colored diamond is the largest ever to be offered at auction.
It’s also the largest reddish orange diamond ever graded at the Gemmological Institute of America. The stone ‘to die for’ has been estimated......
