Sotheby's, Hong Kong, October 2005

Lot 1177 Colour-changing Sapphire and Diamond Ring

Centring on a cushion-shaped colour-changing sapphire weighing 8.98 carats, flanked by a double border of tapered baguette diamonds together weighing approximately 1.95 carats, mounted in 18 karat white gold.
Ring size: 6 1/2

Accompanied by GRS report numbered GRS2005-020877, dated 22 February 2005, stating that the 8.98 carat sapphire is natural, of Sri Lanka origin, with no indications of thermal treatment. Special Comment: Prominent colour-change in different light sources with intensively saturated colours.