Can I remove the lens of the GemLoupe?

Yes, you are able to remove the lens of the GemLoupe.

Here is how you can do it:

Detach the main body of the GemLoupe from the ring clip

From the back of the main body of the GemLoupe, push the lens out from the back of the GemLoupe.

This will successfully allow you to detach the lens from the GemLoupe