Roman Gnostic Magical Gemstone with Goddess Selene. 3rd century A.D. An oval-shaped amuletic peridot gemstone intaglio with bevelled edge, engraved with facing figure of goddess Selene advancing left, wearing a peplos with billowing veil or shawl above, crescent at neck and to head, holding a torch; Greek inscription 'MY' and inversed 'MI' below; supplied with a museum-quality impression. 3.07 grams, 21 mm (7/8 in.). Acquired 1979-1999. London collection of the late Mr S.M., thence by descent. Acquired on the UK art market. Private collection, London, UK.