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 hook Length 3.6cm / 1 7/16''
Width 3cm / 1 1/8''
Amethyst 28.0 x 20.0 x 13.3mm Weight: 21.5g
19th century nine stone vari-colour gem brooch, c.1830, of oval form, central sapphire to a surround including sapphire, ruby, catseye, hessonite garnet, aquamarine and amethyst,