Can anyone please identify this old ring

[Corey1999]

Can anyone identify this ring or the price of this ring please

 

[stracci2000]

Looks like a retro-style ring with amethyst, black onyx and marcasite set in sterling silver. Probably marked 925.
Some of the marcasites are missing.
Pretty, but not worth a fortune, $20-$40

 

[Corey1999]

Ok thanks