Acetone is really the only effective solvent. It requires some soaking, a few hours after you are finished cutting a stone. To transfer I use a small butane torch to heat the dop stick that I am removing. First I wrap the dop and stone to be retained with a wet tissue and then carefully heat the dop I am removing. I use a needle nose to pull off the heated dop. Never had any problem over heating the stone just do not heat the dop too much.
Doug