Ring with many marks - all unknown! import

[KarenW]

This lovely little thing is marked M&M, signed ‘by Michele’ and marked 925. It also has a hallmark which I simply can’t read. So many marks and still no idea where it is from?

Now know that one of the marks is an import hallmark, going in to London 1994.

[KarenW]

gems tested as genuine, but not sure what!

[Jools]

They look like amythest !!.
Have you tried a USB Microscope to obtain clearer pictures !!. They’re cheap but effective