I strongly suggest doing this QUEST here before doing JC. Its an easy quest and the end result is a superior 6-slot tradeskill container that can accomplish combines a normal jeweler's kit cannot.
Notes: Platinum Bars can be bought from Noirin Khalen of the eastern trade building, PoK. Gnomish Heat Source is bough from Eric Rasumus, by the small bank, PoK. Raw Faycite Crystals are found in THESE zones.
Oh, and save the Dwerium Bars you made, you'll need them later.
Notes: Platinum Bars can be bought from Audri Deepfacet of the northern trade building, PoK. Jade can be bought from Kirem Deepfacet, next to Audri. And you were just getting used to running around weren't you?
Notes: Mercia of the eastern trade building, PoK, sells the mold and the solo setting tool.
Thanks to Stillwaters, a/k/a arkadykappa, for this guide.