Ruby and diamond ring, of cluster design, centring a claw-set cushion-shaped ruby weighing 5.29 carats, framed by a line of brilliant-cut diamonds, the 10 diamonds together weighing approximately 2.50 carats, mounted in platinum and 18ct gold, size L1/2., accompanied by a Grs report numbered GRS2018-096855, dated 28 September 2018, stating that the 5.29 carat vivid red 'Pigeon's blood' ruby is natural, with no indications of heating, of Burma (Myanmar) origin, a Gubelin report numbered 17090213, dated 4 October 2017, stating that the 5.29 carat red ruby is natural, with no indications of heating, of Burma (Myanmar) origin.