A group of jewellery

A group of jewellery, early 20th century, comprising: two amethyst and seed pearl pendants, lengths 5.2cm and 3cm, chain lengths 42cm and 51cm; two pairs of amethyst and seed pearl earrings, post fittings, length 4.3cm and 1.3cm; a pair of citrine and seed pearl earrings, post fittings, length 2.7cm each; a bar brooch set with a converted square cufflink applied with white enamel and set with rubies and diamonds, length 4.7cm, dated 1925; and an enamel bar brooch, length 5.1cm, British hallmarks for 9ct gold, all mounted in gold, pearls untested