Gemma Claudia

The Gemma Claudia is a very finely carved and detailed, five-layered, cameo in sardonyx, a type of onyx that has parallel layers of sard (shades of red) which depicts members of the Roman imperial Julio-Claudian dynasty. It is believed to have been created in around 49 AD and by the 17th century was owned by the Habsburg Holy Roman Emperors, later passing to the Kunsthistorisches Museum in Vienna (AS Inv. No. IX A 63). It is 12 cm high and set in an 18th-century gold circlet.

It depicts two double cornucopia (with an eagle between), out of which sprout four portraits, two on either side. On the left is the Emperor Claudius and his new wife Agrippina the Younger (as Cybele, the goddess of fertility) opposite them, Agrippina's parents Germanicus (also Claudius's brother) and Agrippina the Elder. Both Claudius and Germanicus wear the corona civica, or civic crown, the prestigious military…

摘自英文维基百科「Gemma Claudia」（CC BY-SA 4.0），暂时没有中文条目。