"Mmm...I suspect you'd be able to. The water would be the more difficult. I'd recommend finding a...<em>relatively</em>trustworthy soul native to the deeper regions, then trading with them for it. The gem? I'd just find a few drakes and kill them. There's some kobolds to the north that should be able to help with such, and all you'd need is a good deal of ice to get rid of the drakes."