12th or 13th century
gold sheet over core; set with almandine garnet cabochon
4.9 x 1.95cm
The bezel is inscribed ‘Abdallah ibn Ahmad, in reversed decorative Kufic script.
M. Wenzel, Ornament and Amulet. Rings of the Islamic Lands, The Nasser D. Khalili Collection of Islamic Art, volume XVI, London 1993, cat.180, pp.64–5 and 214. J.M. Rogers, The Arts of Islam. Masterpieces from the Khalili Collection, London 2010, cat.81, pp.84–5.