I tried reading this like three times and I’m not even sure how many bands in total your ring has, whether or not you actually have a round profile for some of the bands or if they’re all half round or if the centre one is flat at all.
My rec would be, google images of rings, and try to find something similar to what you have in mind. It’s going to be easier to say, “something like this but the outer bands actually look like this other ring right there” or something. Use the images as a starting point