centred by a principal emerald-cut diamond of approximately 1.25ct, collet set and raised on a diagonal bands of baguette cut diamonds and flanked by squared-off Chinoisierie style scrolls and arrowed ends 'secured' on baguette diamond arc joins, mounted in platinum with 18ct white gold fitting, signed 'Cartier London', together with a pink leather Cartier caseLength 6.5cm / 2½''
Width 1.4cm / ½''
Central diamond approximately 7.70 x 4.90 x 3.60mmWeight: 12g
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