A late nineteenth century gold mounted diamond cluster set bangle, adapting to a brooch, the bangle centred with an old brilliant-cut champagne diamond within a cluster surround of smaller white old-cut diamonds, all claw set, mounted to a triangular section hollow hinged bangle, the cluster detaching to fit a knife-edge brooch mount, principal diamond approximately 1.30 carats, remaining total diamond weight approximately 1.2 carats, internal bangle width 57mm, bar brooch length 55mm. £2600-3000