Funny thing, I was just going to comment on this hehe.
I had also purchased a 30X loupe a couple weeks ago (I think) and my bf had let me take a look at the ring with the loupe, because he loves me and I may have bit him if he didn’t

At first I couldn’t see it. I got a little frantic and started getting a little high pitched that I couldn’t see it. He calmed me down and told me to give it another look in a bit. Hell to that! I went to another the living room with window lighting and I slowly turned the ring so I could see the girdle through the loupe… was that a scratch? No wait..it turned it back a little bit and moved it a little further away from the loupe and EUREKA! There is was! You can just make out “Mira Moissanite”. It almost looks like its “MIRA Moissanite”. It’ll look about as thick as the edge of a business card.
I’m going to be at his house again tomorrow evening, I’ll try to see if I can get it in view and take a picture of it.