A late 19th century opal and diamond hinged bangle
The openwork plaque centrally-set with a circular cabochon opal, within a star-shaped surround, to a further border of heart-shaped opals, accented throughout with old brilliant-cut diamonds, between trifurcated knife-edge shoulders, diamonds approx. 0.85ct total, centre plaque detachable, inner diameter 5.7cm
