I am considering buying the single solitaire micro-pave ring (pictured below) for my girlfriend. She works as a physical therapist which requires using her hands for massage, other hands-on techniques, and frequent hand-washing. I''ve read a few posts here saying that micro-pave rings are susceptible to having the diamonds fall out if people have jobs where they use their hands a lot. I''m wondering if people think she is going to have a problem with this or not. Also, does anyone know the normal replacement procedure if the diamonds do fall out (i.e., is this covered under most warranties?). Any information would be greatly appreciated! Thanks!