Gold pendant with an intaglio of Perseus and Andromeda, 17th - 18th century

A gold mounted banded agate intaglio possibly depicting Perseus and Andromeda.

The intaglio is Italian, 17th century/18th century.

The vari-coloured gold pendant mount is English and dates to the late 18th century.

The pendant measures 6.1 x 2.4 x 0.3cm.
The intaglio on its own measures 1.6 x 2.7cm.
Weighs 13.7 grams.