Unknown Byzantine, ‘Pectoral with Coins and Pseudo-Medallion’, ca. 539–550, The Metropolitan Museum of Art

ring: 19 11/16 x 3/8 in. (50 x 1 cm); medallion: 2 3/4 x 6 11/16 x 3/8 in. (7 x 17 x 1 cm); Wt.: 11.9oz. (338 g)
http://www.metmuseum.org/art/collection/search/464070

Image rights: The Metropolitan Museum of Art (Gift of J. Pierpont Morgan, 1917), licensed under CC0 1.0 Universal

About Unknown Byzantine