Which of the following was NOT among the Navaratnas of Chandragupta II?

Harishena was Samudragupta’s court poet and minister and composed the Prayag Prashasti; he was not one of the figures conventionally listed among Chandragupta II’s Navaratnas. The Gupta age is often described as a classical or golden age because of important achievements in Sanskrit literature, temple architecture, sculpture, astronomy and mathematics, but the label should not conceal regional diversity or social and political change. Kalidasa, Dhanvantari and Varahamihira appear in the conventional Navaratna list, although that list itself belongs largely to later tradition.