"Margaritha" Roman freshwater pearl earrings

Replica of Roman pearl earrings 1st century AD
 They're Roman in style  wrapped on gold-plated wire and hooked into the gold earring.
 This type of earrings is typical in the Roman Empire from the early 1st century BC. Chr.
 In Pompeii  and in the Pompeian villas (e.g. in Villa Oplontis) there are several  found these wonderful pieces of jewelry. 
 See photo of the original earrings from "Villa B" in Oplontis (near Pompeii)