of cut-corner rectangular outline, facetted to the pavilion, in a half pearl border with inner and outer row of spaced rose cut diamond collets, the amethyst open set, the pearls and diamonds close set, mounted in silver and gold, the brooch fitting detachable for wear as a pendant from hidden scroll hookLength 3.6cm / 1 7/16''
Width 3cm / 1 1/8''
Amethyst 28.0 x 20.0 x 13.3mmWeight: 21.5g
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