ROMAN GOLD RING WITH CARNELIAN INTAGLIO DEPICTING CASTOR AND POLLUX Ca. AD 100 - 300. A gold 21.8 ct ring with a D-section hoop enlarged on the shoulders to form an oval bezel securing a carnelian intaglio depicting Castor and Pollux with their horses probably in a scene of "Deux Ex Machina". Size: D:17.73mm / US: 7 1/2 / UK: O 1/2; Weight: 10g. Provenance: Private UK collection; formerly with R. A.; since the 1990s. This item has been cleared against the Art Loss Register database and comes with a confirmation letter. This piece is accompanied by an authentication statement by Sami Fortune, ancient jewellery specialist.