c. 400 CE-1900
actual: 3.7 cm (1 7/16 in.)
Marble
3rd century CERomanCrystalline Greek marble, perhaps from Naxos
1st century BCE-2nd century CERomanGreek island marble
2nd century CERomanGarnet crystal
2nd-3rd century CERomanMarble from Greek mainland (Hymettan?)
1st-2nd century CERomanLapis lazuli (?)
1st-3rd century CERomanMarble
2nd century CERomanAsia Minor marble
1st-2nd century CERomanBone
1st-3rd century CERomanMarble
RomanMarble
2nd century CERomanMarble
2nd century CERoman