with six graduating pointed petals, each featuring a principal cushion cut sapphire to a diamond cluster ground, around a single stone diamond collet stamen, a tapering diamond line stem below, open set in silver and goldLength 4.8cm / 1 7/8''Weight: 16.5g
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