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7 octobre 2012

A diamond ring

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A diamond ring.  Photo Christie's Image Ltd 2012

Set with a modified pear-shaped diamond, weighing approximately 12.05 carats, to the circular-cut diamond gallery and half hoop, mounted in platinum. 5IWith report 2145274974 dated 18 January 2012 from the Gemological Institute of America stating that the diamond is F color, internally flawless clarity. Estimate $650,000 - $850,000

Accompanied by a supplemental letter stating that the diamond has been determined to be a Type IIa diamond. Type IIa diamonds are the most chemically pure type of diamond and often have exceptional optical transparency. Type IIa diamonds were first identified as originating from India (particularly from the Golconda region) but have since been recovered in all major diamond-producing regions of the world. Among famous gem diamonds, the 530.20 carat Cullinan and the 105.60 carat Koh-i-noor, are examples of Type IIa 

Christie's. Magnificent Jewels. 16 October 2012. New York, Rockefeller Plaza

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