An Art Deco diamond and sapphire entourage ring, circa 1925

Centred with a bezel-set old-cut diamond, weighing approx. 0.94 ct, within a calibré-cut sapphire surround, and openwork gallery. Estimated diamond colour ca. J-L, clarity ca. SI2-I1 Gross weight approx. 3.1 g Ring size 51/16 Graded and measured in m