A group of jewellery including an Art Deco sapphire and diamond pendant, comprising: a gold pendant

A group of jewellery including an Art Deco sapphire and diamond pendant, comprising: a gold pendant of wreath design, set with a circular-cut amethyst, suspending an oval amethyst drop, pendant length 3.6cm, necklace length 45cm, necklace stamped 750, later gilt clasp; a sapphire and diamond half-hoop ring mounted in 18ct gold, size O, British hallmarks; and an Art Deco pendant of geometric design, set with rose-cut diamonds and calibré-cut sapphires, mounted in gold and platinum, pendant length 2.7cm, French assay marks for 18ct gold, numbered 25904, silver chain