A Belle Epoque sapphire and diamond ring, by Tiffany & co.

Set with a cushion-cut sapphire, weighing approximately 17.50 carats, with a pierced old European-cut diamond gallery of garland motif, to the old European-cut diamond shoulders, mounted in platinum, circa 1910. Signed Tiffany & Co. Est. $40,000 - $60,000 - Sold $158,500

With report 92037312 dated 25 February 2009 from the AGTA Gemological Testing Center stating that the data obtained during the examination of this stone indicates that the probable geographic origin is Burma (Myanmar). No indications of heating

Christie's. Jewels: The New York Sale. 22 April 2009. New York, Rockefeller Plaza www.christies.com Photo: Christie's Images Ltd 2009