1940s French diamond and sapphire spiral ring in 18kt yellow gold. Centred with nineteen round brilliant cut diamonds in platinum grain settings, surrounded by a swirling row of round mixed cut sapphires in four claw settings, to a spiralling cluster design with a central bombe cluster, curving claws, deep ridged twirling skirt and crossover shoulders which terminate to a solid shank. Hallmarked 18kt gold, French.