The Hellenistic style of this piece belongs to a tradition of amulets that were popular in this period and depicted animals from both Egyptian and Greco-Roman culture. Dolphins were recognised in antiquity as friendly and helpful creatures, and are a staple feature in the art, jewellery, literature and mythology of the region. Rock crystal is a form of quartz native to Egypt and was used in art and jewellery consistently throughout the civilisation, from the Predynastic to Medieval Periods.
The Egyptians wore amulets alongside other pieces of jewellery. They were decorative, but also served a practical purpose, being considered to bestow power and protection upon the wearer. Many of the amulets have been found inside the wrappings of mummies, as they were used to prepare the deceased for the afterlife.
To find out more about Ancient Egyptian amulets please see our relevant blog post: Egyptian Amulets and their Meanings.