A three row cultured pearl and amethyst choker necklace, centred with an oval mixed-cut amethyst and half pearl cluster, with single cultured pearl drop below, between three rows of uniform cultured pearls, with vertical bar spacers, to a 9ct gold slide action clasp set with three further pearls, clasp stamped with maker’s mark ‘JKa’ and ‘9ct’, length 39cm. £400-600