GOLD RING SET WITH AN AMETHYST INTAGLIO ENGRAVED WITH THE BUST OF THE EMPEROR HADRIAN Roman art, first half of the 2nd century AD Ring set with an intaglio engraved with a male bust in profile, armoured and draped, with beard and laurel head. The mounting, although antique, is not necessarily the original. Gross weight: 8.73 gr. Diameter: 2.2 cm Provenance : Former collection of Ambassador Graff, Paris Paris art market, 1990s Cahn International AG, Basel, acquired on the Paris art market in 2011 Christian Levett Collection, Musée d'Art Classique de Mougins, acquired in 2012 Exhibitions : TEFAF, 16 to 25 March 2012, Maastricht, Netherlands Musée d'Art Classique de Mougins (MACM), Mougins, France, 2012-August 2023 Comparisons with coins of the period reveal a profile of the Emperor Hadrian (117-138).