Two rings Old or new?

Here are two rings I don’t know anything about…are they worth anything…are they old or newer…


Aging can be difficult. But if I had to GUESS:
the first one appears to be newer. Looks like chinese turquoise.l Maybe not NA as the border looks unlike anything I have seen.

The second piece with only one stone is older. Maybe 80’s? Nice stone! I have seen this design before.