New ring turquoise and spiny oyster?

Just bought this from an estate sale. Could anyone tell me what kind of turquoise this is and if this is coral or spiny oyster. Any idea of age? Thanks so much for any help you can give me. I love this site and am learning so much.


No hallmarks that I can see.

Looks like coral to me. I’m used to spiny oyster being more orange. At least in your pic it looks pretty red.

1 Like

It’s coral, not spiny. As for the turquoise, it’s always impossible to know for sure without provenance. I get an 80’s-90’s feel from it, but open to others opinions on age.

1 Like

Thank you so much for the info…I am slowly learning.