06/16/2026
Black River Agate
Black River Agate set in cast Sterling Silver. Black River agate is a naturally water-worn, banded agate sourced primarily from the Entre Ríos Province in Argentina....
Black River Agate set in cast Sterling Silver. Black River agate is a naturally water-worn, banded agate sourced primarily from the Entre Ríos Province in Argentina. Prized by collectors, it typically features beautiful, shifting layers of cream, beige, brown, and sometimes blue or subtle black, an...