A topaz, sapphire and diamond brooch, circa 1900, centring on a briolette topaz, within a foliate
A topaz, sapphire and diamond brooch, circa 1900, centring on a briolette topaz, within a foliate gold and platinum mount set with circular-cut sapphires and single- and rose-cut diamonds, length 4.9cm, French import assay marks for 18ct gold and platinum