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A cushion-shaped spinel and diamond ring, by Tiffany & Co., circa 1940

The cushion-shaped spinel, weighing approximately 14.0 carats, within a six-claw setting, each shoulder accented by French-cut diamonds, mounted in platinum, shank signed Tiffany & Co. and numbered, ring size 5 ¾.. Sold for HK$276,000

Note: Accompanied by a certificate from Gübelin Gem Laboratory, stating that the spinel is natural and is of red colour. Report number 0803550, dated 14th March 2008.

Bonhams. Fine Jewellery and Jadeite and Modern Wristwatches, 21 May 2009. Island Shangri-La Hong Kong Hotel, Admiralty, Hong Kong www.bonhams.com