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30 novembre 2013

A sapphire and diamond ring. Photo Christie's Image Ltd 2013.

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A sapphire and diamond ring. Photo Christie's Image Ltd 2013. 

Of bombé design, set with a cushion-cut sapphire, weighing approximately 14.54 carats, within an old European and old mine-cut diamond surround, mounted in platinum. Estimate$725,000 – $925,000

With report CS 42693 dated 30 July 2010 from the American Gemological Laboratories stating that it is the opinion of the Laboratory that the origin of this sapphire would be classified as Kashmir. Heat enhancement: None. 

With report 12055254 dated 11 May 2012 from the Gübelin Gem Lab stating that gemmological testing revealed characteristics consistent with those of sapphires originating from Kashmir. No indications of heating. 

With report 5151389025 dated 15 April 2013 from the Gemological Institute of America stating that the origin of this sapphire is Kashmir. No indications of heating.

Christie's. MAGNIFICENT JEWELS. 10 December 2013. New York, Rockefeller Plaza -www.christies.com

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