A sapphire and diamond ring, centring a cushion-shaped sapphire, weighing 16.26 carats, mounted within a millegrain round brilliant-cut diamond surround, with similarly-set shoulders, diamonds approximately 1.80 carats total, mounted in 18 carat white gold, ring size O . Accompanied by a report from the Gem Studies Laboratory (GSL), Australia, stating that the sapphire is of Ceylon (Sri Lankan) origin, with no evidence of heat treatment. Report number AA53801/1, dated 10 September 2014