Gold ring brooch set with multi-coloured moss agates, with three gold thistles in the centre with heads of amethysts and a cairngorm

Gold finger ring with a large bezel set with an oblong, table cut amethyst surrounded by eight small sapphires in individual collets, from Roy Ritchie's excavations at Whithorn Priory, Whithorn, Wigtownshire, 13th century

Silver-gilt finger ring with oblong bezel set with an amethyst, from Roy Ritchie's excavations at Whithorn Priory, Whithorn, Wigtownshire, 13th century

Necklace consisting of a string of thirty four graduated amethyst lentoid beads: Ancient Egyptian, Upper Egypt, Abydos, Middle Kingdom, c. 2010 - 1660 BC

Necklace consisting of a string of sixty-two carnelian and twelve amethyst ball and lentoid beads with amulets: Ancient Egyptian, Middle Egypt, Deir Rifa, Tomb 219, Middle Kingdom, c.2125 -1660 BC

Body chain consisting of a string of two hundred and seventy-six graduated ball beads in amazonite, lapis lazuli, carnelian and amethyst, excavated in Tomb 72, Cemetery A: Ancient Egyptian, Middle Egypt, Haraga, Middle Kingdom, c.1880-1750 BC

Necklace of graduated ball beads mostly in carnelian, with a few amethyst, from Tomb 72, Cemetery A: Ancient Egyptian, Middle Egypt, Haraga, Middle Kingdom, 12th Dynasty, c.1880-1750 BC

Pendant of gold, enamelled and set with rubies, amethysts and a coral cameo with the bust of Christ on one side and the Virgin on the other: coral Sicily, 17th century, mount France or Italy, mid-17th century

Snuff bottle of red marbled glass, flattened oval form carved low relief taotie masks and ring handles, and with an amethyst stopper fitted with ivory spoon: China, Qing Dynasty, 19th century AD

Snuff bottle of carved amethyst: China, 19th century AD

Stopper of amethyst, for an agate snuff bottle: China

Table centre in the form of a loving cup, of partly gilt silver, with four ivory handles, each surmounted by the figure of a lion sejant, presented to Viscount Horne of Slamannan by the Unionists of Stirlingshire: English, London, by Charles Moxey and William Glennie of the Artificers' Guild, designed by Edward Spencer, c. 1911

Cover of partly gilt silver for a table centre in the form of a loving cup, presented to Viscount Horne of Slamannan by the Unionists of Stirlingshire: English, London, by Charles Moxey and William Glennie of the Artificers' Guild, designed by Edward Spencer, c. 1911

One of a pair of 'red feather' earrings of white gold, with yellow gold granulation, graduated purple-pink plique-a-jour enamel, garnets and amethysts, by Georgina Follett, St Andrews and Dundee, 2000

One of a pair of 'red feather' earrings of white gold, with yellow gold granulation, graduated purple-pink plique-a-jour enamel, garnets and amethysts, by Georgina Follett, St Andrews and Dundee, 2000

Ring, of silver and amethyst, with abstract bezel and central cabochon amethyst in a plain setting, design number 139: Danish, designed by Henning Koppel in 1967 for Georg Jensen, manufactured c. 1973