of symmetric form, centred by a principal cushion cut diamond, the navette shaped petals each with a graduated five stone open middle to a border of graduating smaller diamonds, partially open to the cut-down collet setting in silver of old cushion and old European cuts, later brooch fittingWidth 4.6cm / 1 13/16''Weight: 16g
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