with facetted rock crystal frames centred by a similarly shaped geometric cluster of circular and baguette cut diamonds, three baguette diamond channels extending across to secure the crystal frame, serial number to one 0792 and 0779 to the otherLength 4.8cm / 1 15/16''Weight: 53.5g
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