the openwork cluster arms formed by diamond set double C scrolls centred by graduated lines of diamond collets, a central cluster with raised principal cushion cut stone, the suspension hoop with stylised diamond coronet cluster, all open cut-down colletLength including hoop 8.5cm / 3 3/8''Weight: 20.5g
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