Art Deco 0.90 Carat Minor Oil Colombian Emerald & Diamond Ring, circa 1925It is impossible to articulate how beautiful this Art Deco emerald and diamond ring is. The emerald cut emerald in the centre certified as Colombian and having received only minor oiling is a rich and glowing blue ish green. The stone is rubover set in platinum within a geometric, step down design set featuring twenty old mine cut and rose cut diamonds, with further geometric detailing in the gallery. On a slim and flat platinum shank. Currently size