the tapering 'nail' set with graduated old round brilliant and single cut diamonds, a boat shaped cluster forming the nailhead to larger end, the nail threaded through a calibre cut sapphire square, this suspending the triple drop motif formed of two cushion cut sapphires to the middle joined on a diamond line bar, flanked by round facetted sapphires from a diamond line arc, signed 'CARTIER'Length 6cm / 2 3/8''
Height 4.5cm / 1�''Weight: 9g
19th century large golden topaz and diamond cluster brooch, c.1850, the oval facetted topaz of approximately 34ct, secured by a diamond collet set gold mounted openwork foliate scroll border, all raised within a diamond cut down collet frame, the diamonds all of cushion, old brilliant, double-eight and rose cut, larger diamonds to the outer frame, mounted in silver and gold, total diamond weight approximately 5.10cts