Ancient Near Eastern cylinder seal made of translucent agate and dating to roughly 600 - 300 BCE.
The setting is modern Continuum sterling silver developed by Stuller. Continuum has a much higher as-cast hardness and a much tighter grain size which allow a better finish that will last longer. It provides superior oxidizing and tarnish resistance compared to other high tech sterling silver alloys.
The chain is a lovely sterling silver wheat chain. Length - 18".