A topaz parure, 1830s

A topaz parure, 1830s, comprising: a necklace, the front composed of gold cannetille links set with trios of circular-cut yellow topaz in foil-backed settings, the back composed of two elaborate twisted cannetille chains, to a yellow topaz clasp, length 40.5cm; a brooch of similar design, attaching to the necklace as a pendant, length 5.1cm, three pear-shaped topaz pendants detached; and a pair of pendent earrings of matching design, length 7.1cm each, later hook fittings, one earring broken, fitted case