BYZANTINE OR MEROVINGIAN RED JASPER INTAGLIO WITH MONOGRAM IN HIGH KARAT GOLD RING. Ca. AD 500 - 700 An octagonal red jasper intaglio engraved with an interlaced monogram, set in a possibly later gold ring with a solid, rounded hoop that broadens slightly at the shoulders. Size: D:17.53mm / US: 7 1/4 / UK: O; Weight: 9g. Provenance: Private London collection of an established Mayfair dealer and scholar with over 40 years of experience; previously part of 1970s-1990s UK collection. This item has been cleared against the Art Loss Register database and comes with a confirmation letter.