A George III gem-set gold demi-parure

A George III gem-set gold demi-parure, comprising an elaborate gold necklace of foliate quatrefoil and pellet design, suspending pearl-set gold drops, with alternate gem-set and swag links in closed-back yellow gold, the central and largest pendant set with a ruby and suspends a pink topaz, yellow topaz and an amethyst briollette, 43cm long, with conforming seed pearl, emerald and amethyst earrings, 4cm high, and a pink topaz stickpin, in original fitted box