18kt Gold, Opal, Ruby, and Diamond Pendant/Brooch, bezel-set with a cabochon opal measuring approx. 20.50 x 15.30 mm, within a filigree mount with circular-cut rubies, all framed with diamond melee, bail removable for brooch conversion, lg. 2 1/8 in., signed Mia B.
Pinstem visible through opal, minor crazing to opal, opal is transparent. otherwise without issues.