Maybe this is a silly question but I am just a hobby decorator and don't make many cakes... When a cake with rhinestone is cut, do you take the rhinestones off on that entire tier? If you used it for a wedding cake, would you need to make sure the 'break' in the rhinestones are in the back so the bride and groom can cut the cake but it still looks pretty in the front? How do you attach the rhinestones?  Any advice on using rhinestones and rhinestone ribbons is appreciated.

That is exactly what I did for a cake I made recently that had a rhinestone ribbon as a bottom border.  I left about a 2" gap between the ribbons.  This way the bride and groom can cut the cake without taking the design off.  But of course the anything inedible should be taken off before serving the cake and you have to remind them that.