A sapphire and diamond brooch, by Harry Winston

A sapphire and diamond brooch, by Harry Winston

Set with a modified half-moon sapphire, weighing approximately 22.01 carats, within a circular-cut diamond surround, to the triangular-cut diamond link, suspending a detachable pendant, set with a pear-shaped sapphire, weighing approximately 27.39 carats, within a graduated circular-cut diamond surround terminating with twin-set triangular-cut diamonds, mounted in platinum, with pendant hoop for suspension. Signed Winston for Harry Winston - Est. $100,000 - $150,000 - Sold $134,500

With reports 92018012 and 92018112 dated 2 and 3 March 2009 from the AGTA Gemological Testing Center stating that the data obtained during the examination of these sapphires indicates that the probable geographic origin is Sri Lanka. Indications of heating (2)

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