ROMAN AMETHYST CAMEO GOLD RING WITH MEDUSA

CA. 200 AD. Very Rare Ancient Roman gold ring; oval hollow hoop forming large bezel; beautifully carved amethyst cameo inserted in the middle, depicting medusa/gorgon head. Superb, wearable condition. D: 22mm/L: 27mm/H: 24mm, UK Z; US12 ; 8gr; Provenance: From the private collection of a London professional, previously in an old British collection formed in the 1980s.