559
A Sapphire and Diamond Ring
One cushion-shaped sapphire, 16.26 caratsDiamonds in the surround, totalling approximately 4.55 caratsPlatinum(16.26-carat Sapphire)
<em>SSEF report, numbered 86456, dated 27 June 2016, Ceylon (Sri Lanka), no indications of heating.
GRS report, numbered GRS2012-062727, 24 June 2012, Sri Lanka, no indication of thermal treatment. </em>