Relique du Madde
Adventurer
Wouldn't the shaving have to be really fine in order to properly get it to mix with the water?
It's basically was like a mud bath that uses the gem dust instead of volcanic ash. If you think about it, it's pretty wasteful since you would have to grind hundreds and thousands of gemstones (or disenchant crap loads of magic items) for one bath. However, since that world was high magic, there was probably a wizard who was hired by each bathhouse to transmute ordinary sand into "powdered gemstones."