A quantity of jewellery

A quantity of jewellery, including a yellow gold fine-link chain necklace mounted with graduated oval-shaped amethysts; an 18ct gold horse and jockey brooch with enamel decoration; a yellow and white gold bird brooch; an 18ct gold cluster ring set with an oval-shaped amethyst within a surround of small diamonds; a five-stone diamond half-hoop ring set in gold; a diamond-set platinum full circle eternity ring (some diamonds chipped), and a diamond-set solitaire ring set in gold with four small diamonds to each shoulder, and a sapphire and diamond cluster ring