ROMAN OR LATER LAPIS LAZULI INTAGLIO WITH EROTIC SCENE AND AMPHORA IN HIGH KARAT GOLD RING Ca. AD 100 or later. A lapis lazuli intaglio engraved with a nude female figure on hands and knees, approached from behind by a canine figure, both shown in profile above a groundline. To the left, a two-handled amphora is depicted upright. The gem is enclosed within a plain gold collet bordered by a fine rope-twist frame and mounted in a substantial gold ring with flaring shoulders, each with a cluster of three granules. Size: D:17.93mm / US: 7 3/4 / UK: P; Weight: 6.6g Provenance: Private London collection; formerly in Austrian private collection 1980s-early1990s. This item has been cleared against the Art Loss Register database and comes with a confirmation letter.