610
A Sapphire and Diamond Ring
One cushion-shaped sapphire, 6.73 caratsTwo trilliant-cut diamonds on side, together approximately 1.20 caratsPlatinum(6.73-carat Sapphire) <em>GRS report, numbered GRS2016-028299, dated 22 February 2017, Sri Lanka, no indication of thermal treatment, GRS-type 'royal blue'.</em>