centred by a principal cushion cut diamond cluster to a pierced ground of radiating lines, the rays and cluster border set with rose cut diamonds, the shaped frame set with a line of cushion cut diamonds, open cut down collet set, the rays with reeded line engraving to the backLength 4cm / 1 5/8''
Width 2.7cm / 1 1/8''Weight: 9g
19th century emerald and diamond openwork scroll knot brooch, French c.1880, the central upright figure-of-eight set with cushion cut diamonds, entwined by a looping line of rectangular cut emeralds, open set in gold, French gold assaymark and partial workship mark to pin, pendant hooks to verso, approximately 3.45cts diamonds in all, approximately 6.00cts of emeralds
Antique diamond flowerhead brooch by Tiffany, c.1900, with four petals each shaped collet set with a round brilliant of old European cut, smaller similar claw set to centre forming the stamen, graduated diamonds to the short cut stem, open set in gold, signed 'TIFFANY & CO', total diamond weight approximately 3.00cts