Hello Michael, This in particular is not easy, but it is parametric. Anyway there are other ways to make it easy, with simple tips and not get this curvature. We are open to all users to create any other design trying to show you the best, so if you have any suggestions you can let us know.
impossible to do the tutorial, from the start with "under bezel", when I enter the given values it doesn't look good and the setting encompasses the entire stone (like a balloon)
Hello Winthren, Check that the horizontal distance is spaced far enough apart to allow for the size of the thickness. Anyway send us a screenshot to hello@crossbytes3d.com so we can help you to solve that problem more accurately.