Glass ring stone
Object type: Intaglio
Department: Greek and Roman Art
Culture: Roman
Period: Late Republican or Imperial
Date: 1st century BCE–3rd century CE
Medium: Glass, purple paste
Dimensions: Length: 3/4 in. (1.9 cm)
Classification: Gems
Credit line: Gift of J. Pierpont Morgan, 1917
Accession year: 1917