Art Nouveau Platinum Opal and Diamond Filigree Ring Round and vibrant gold outlines the

and vibrant gold outlines the intricate details

and displays a wonderful filigree wirework surface

there is no apparent damage to the gold and silver setting or to the diamond

The crown is marked "PATENT OYSTER"

there is no apparent damage to the gold setting or to the enamel detail

Art Nouveau Platinum Opal and Diamond Filigree Ring Round and vibrant gold outlines theA lovely opal and diamond filigree ring from the Art Nouveau (ca1910) era! Crafted in platinum, the ring holds a beautiful boulder opal cabochon at the center of a filigree mounting. The striking opal is an Australian ironstone boulder opal, showing beautiful blue and green flashes contrasted against a dark brown host rock. Four old mine cut diamonds decorate the fine filigree wirework border in bead settings, adding a gorgeous sparkle to the design!