Gemcutter Gedrik:
Rumors abound, but the most reliable one seems to be the one in which a monster in the hot springs region is in possession of ice crystals. Go to the hot springs area and speak with Jeremy who has a catering service there. I've heard that many people obtained ice crystals while helping him to locate special food ingredients. While you're gone, I'll research how to cut the stone from those who have already made the jewel.