Sterling Rings

I believe these rings are hand made, not mass produced. The square one I got some time ago. I believe the stone is gaspeite. The ring is probably a men's ring but I have big hands and small rings look ridiculous on my fingers - LOL

The second ring is unmarked but I am almost certain that it is sterling.
The stone is a bit rough on the edges. It might be some kind of quartz.

Thanks for looking:)