BYZANTINE HIGH KARAT GOLD RING WITH AMETHYST BEZEL Ca. AD 600. A gold ring with a circular hoop and a bezel set with an amethyst cabochon. The stone is framed by a raised collar with a beaded outer border. For similar see: J. Spier, Byzantium and the West: Jewelry in the First Millennium, 14e 1-2. Size: D:12.9mm / US: 1 1/2 / UK: C; Weight: 1.7g Provenance: Private London collection; previously acquired from a Belgian collection (1980s-1990s).