A Renaissance agate cameo , circa 1650, set to a gold Neo-classical channel set ring mount, circa 1820. The cameo depicts a veiled female, after a female figure in the processional frieze on the Ara Pacis, which mainly depicted members of the Imperial family. The Ara Pacis Augustae (Altar of Augustan Peace, commonly shortened to Ara Pacis) is an altar in Rome dedicated to the Pax Romana. The monument was commissioned by the Roman Senate in 13 B.C. to honour the return of Augustus to Rome after three years in foreign realms. The Ara Pacis’s elaborate scheme of decoration includes two long historical friezes depicting approximately one hundred individuals in parallel processions to celebrate Augustan Rome. The ring is size O [US 7] and the head of the ring measures 2/3 of an inch by 1/2 an inch.