Edwardian diamond and ruby bombe target cluster ring

Edwardian diamond and ruby bombe target cluster ring in platinum and 18kt yellow gold. Centrally set with an estimated 1.00ct oval cushion shape Old Mine cut diamond in a raised millegrain setting, surrounded by a cluster of old cut diamonds in grain settings, bordered by a row of callibre cut rubies in millegrain settings, further enhanced by a fringed border of round old cut diamonds in grain settings, to an elaborated openwork design in a bombe shape across the finger, enhanced with decorative millegrain edging and finished with two marquise mixed cut rubies in millegrain settingswhich taper to a slim shank.