I think you shouldn''t stress too much about the girdle. Just carry insurance that covers loss, theft, and damage. The worst thing that can happen with a thin girdle is that the diamond could one day chip if it gets a hard blow. But.....any diamond can chip if that happens, Just ask Laney. My diamond has a very thin to slightly thick girdle. I thought about not getting it because of the very thin part, but I did get it because it is a beautiful diamond. I love it.
To the left and right of the very thin part on the previous scan where the girdle slopes up and down from it, would this be another grade since the rest of the girdle is very thick would it go thick, medium, thin, very thin, thin, medium, thick, very thick? What I mean is it does not just go Very Thick then Very Thin.