Record-breaking Christie's auction sees red diamond sold for $666,200 per carat
The final lot in the sale at Christie's auction house in New York on December 10 was possibly the most eagerly awaited. It was a rare diamond of 3.15 cts., which was said to be the largest reddish-orange diamond ever graded at the Gemological Institute of America.
The low end of the diamond's estimated selling price had been $700,000 and the high end had been $1.2 million. But it went for $2.09 million, setting a new per-carat auction world record for a red diamond of $666,200.
It is not the largest red diamond is existence. The gem collection at the Smithsonian Institution in Washington, D.C. boasts a circular-cut 5.03-ct. fancy dark red stone.
And it was not the only record set at the auction. An 8.90-ct. Kashmir sapphire was sold for $1.37 million, or $154,000 per ct.
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