I need to get some of those stones. I hear all about them but never actually bought one.
I have been using the essential oils for about 7 years now, but again I have never bought the rose oil beause like you said, it's a precious oil which I can't really afford.
Rose oil is very expensive, but non-original ones also partially work. I don't know where you live, but the best rose grows in Turkey / Isparta, if you can provide transportation, I recommend you to buy it from there. It will come at a cheaper price.