A FINE SAPPHIRE AND DIAMOND RINGThe cushion-shaped sapphire weighing 6.26cts within a four-claw setting, between baguette-cut diamond shoulders, mounted in 18K gold, diamonds approximately 1.00cts, French assay mark, maker's mark 'JF' ring size K? (adjustable)Accompanied by a report from the Gubelin laboratory in Switzerland stating that the sapphire weighing 6.26cts is of Sri Lankan origin, with no indications of heating. Report number 12080090, dated August 12th 2012.