Portrait of the Divine Augustus (Retrato del Divino Augusto)

This head was built on a previous bust of Domitian (51/81–96 AD). It was modified at the start of Trajan's rule (53/98–117 AD).
Aspects that were changed include details of the hairstyle and face, as can be seen from the different overlapping hair. This sculpture is in the style of the Augustus of Prima Porta statue.
It must be one of the most significant works of its kind from the entire Roman Empire, as well as the biggest round sculpture made of Carnelian or any other semiprecious stone in the Empire.
The emperor's improved health thanks to this prophylactic stone, representing Augustus and, with this, Salus generi humani, becomes particularly compelling in a period when Trajan presented himself as the divinitus constitutus princeps: the heir to the divine dynasty of Augustus, whose health improved at the spa in Turiasu (now Tarazona, Zaragoza) when he was involved in the Cantabrian Wars between 26 and 25 BC.