I had a diamond engagement ring, but a couple of years ago I lost the stone out of it (awful!) and decided it just isn't worth the cost of replacing it.  I ordered this set so I could have some bling to wear next to my very tiny wedding band!  My size is about a 6.5 and I got a 7, but with my old band on top it holds it all in place and keeps it from sliding around.  I think it is very believable and I have pretty tiny hands.  The setting seems very secure.  Well worth the $.