Antique Art Deco Sapphire & Diamond Cluster Ring

A sapphire and diamond cluster ring, with an oval, faceted sapphire, in a four claw setting, with a surrounding cluster, set with ten, old-cut diamonds, in half rub over, half grain settings, with three eight-cut diamonds, set in each shoulder, in rub over settings, mounted in white gold. Finger size M½ UK / 6¼ USA