Details
A PLATINUM, ONYX AND SINGLE-STONE DIAMOND RING
The central circular-cut diamond within an square-shaped onyx surmount and with circlar-cut diamond-set shoulder, circa 1920 (ÿÿpart of onyx deficient)
The central circular-cut diamond within an square-shaped onyx surmount and with circlar-cut diamond-set shoulder, circa 1920 (ÿÿpart of onyx deficient)