ART DECO PLATINUM, DIAMOND AND SYNTHETIC SAPPHIRE OCTAGONAL DOME RING. Brilliant-cut round diamond weighing approx. .30 ct. in milgrained octagonal mount centered by eight trapezoidal synthetic sapphires surrounded by eight Old Mine cut and Old European cut diamonds in pierced low dome octagonal setting with wheat-chased split shoulders. - Ring size: 6. Estimate $800-1,200
