This dramatically beautiful Art Deco-Style ring, hand crafted in platinum and diamonds with black onyx and enamel accents, is designed around a deep green, but admittedly average quality (mostly opaque), emerald cut emerald measuring 3.20 carats. The verdant gemstone is dressed up on all four sides in full Art Deco splendor in an artfully sculpted geometric mounting adorned with decorative open work details, small sparkling old mine-cut diamonds and navette shape black onyx calibre