there is a thin overlay in the inside of the ring so that the wear is not visible. I made this overlay in 3d for youbut when I made this ring I made this overlay manually from a thin plate. If you use an overlay from my model, it will be slightly thicker than mine.and if you do it completely without an overlay, it will be thinner than in the photoring size unlined 20.49ring size with lining 19.20ring weight in 14K gold without backing 9.84ring weight in 14K gold with 14.09 backing