A late 18th century amethyst brooch pendant and earrings

A late 18th century amethyst brooch pendant and earrings, of girandole design, each square cushion-shaped amethyst suspends a rock crystal foliate motif in silver closed-back settings, each suspending three open-back pear-shaped amethyst drops in silver, brooch pendant 6cm high (including loop), later brooch pin, earrings 4.5cm high, later gold screw fittings, original fitted case with gilt tooled decoration