Art Deco era 1.10 carat Emerald & 0.54 Ctw. Old Single Cut Diamond Square Dinner Ring composed of platinum. Featuring a 1.10 carat Step Cut emerald at the center, GCS certified to have Colombian origin with Minor Oil Treatment. The emerald is framed by two rows of Old Single Cut diamonds (with diamonds accenting the shoulders as well), weighing approximately 0.54 carats in total. The ring has a square shape with angled corners, fine milgrain throughout, and linear cutouts. The setting measures approximately 14.1 mm tall by 13.5 mm wide at the front. Circa 1920.