A late 19th century gold mounted diamond cluster set bangle, adapting to a bar brooch, the bangle centred with an old brilliant-cut champagne diamond within a cluster surround of smaller old brilliant-cut white diamonds, all claw set, mounted to a triangular section hollow hinged bangle, the cluster detaching to fit a knife-edge bar brooch mount, principal diamond approximately 1.3 carats, remaining total diamond weight approximately 1.2 carats, internal bangle width 57mm, bar brooch length 55mm. £3000-3500