If you're looking to remove rhinestones from fabric, the best way to do it is by soaking them in acetone. Acetone is a chemical solvent that will dissolve the glue holding the rhinestones in place. Simply soak a cotton ball in acetone and hold it over the rhinestone for a few minutes. The acetone will loosen the glue and the rhinestone should come right off. You can also use nail polish remover as it contains acetone.