These look really nice and very real.  I purchased them to wear with my 1/2 stud real diamond earrings and they would have looked great if they fit.  The center hole - where the post goes through - is too small for my earrings post that have a screw on back.  I tried other studs I have and I believe these would fit a normal post, just not the kind with screw on backs.  For that reason I returned them.