Antique Right Hand Ring Art Deco 12.40 Emerald Cut Aquamarine & .12 Single Cut Diamonds in PlatinumThis glamorous 12. 40 carat aquamarine ring makes for excellent cocktail attire. 14. 70 mm by 12. 7mm in size the center stone is flanked by a floral motif with linear accents. Set into the swooping floral pattern are bead set diamonds and placed into the center of each sides accent is a bezel set diamond. This ring sits 10mm above the finger and has an allure that cannot be matched.