Vintage Art Deco Opal and Enamel Ring in 14k Yellow GoldVintage Art Deco Opal and Enamel Ring in 14k Yellow Gold. This stunner features a dazzling 1. 96 carat natural opal on a 14k yellow gold band. The blue and yellow harlequin pattern in enamel frames the primary natural opal. The yellow gold band is embellished with a row of small flowers and topped with a bow at each shoulder. We are thrilled to have this piece of Art Deco magic in our showroom!