This is a gorgeous natural Pyrite Ammonite 925 Silver ring that was made in Taxco Mexico.
The Ammonite fossil was mineralized with natural Pyrite mineral ( fools gold ) over time.
I found it on a recent trip there. It was a nice find.
There are just a few tiny divots on the surface of the ammonite/pyrite stone which are minor
Ring size: 7 but can adjust up or down a size ( 6-8 ) US
Weight: .73 oz ( 20.5 gm )