Boucheron Ceylon sapphire and diamond cocktail ring. Set to centre with a cushion shape old cut natural unenhanced Ceylon sapphire in an open back claw setting with a weight of 4.86 carats, further adorned by 54 round eight cut diamonds in open back grain settings with a combined approximate weight of 1.75 carats, to an impressive cocktail ring featuring curving claws, a polished gallery and and fancy shape open backholing, leading to broad integrated shoulders with raised ridged detail and following through to a solid ridged D-shape shank. Marked rose gold and platinum, French import marks, signed ‘BOUCHERON PARIS’, accompanied with an original fitted box, circa 1940, accompanied by a Gem research Swiss lab report #GRS2022-027097.
