Well apparently, it's a bit of a trek to get it. First, go to Tatooine, and look for towers that are all over the place. Randomly (maybe) on these towers is a small panel you can click on. Doing so gives you a 45 minute (or so) water buff. After you obtain the buff, you then fly to Hoth. On Hoth you venture up one of the mountain until you get dismounted and hit the "high altitude" debuff, or whatever it's called. WHen this happens your Tatooine water buff, becomes a physical item in your bags. Once you obtain this crystal of water, or whatever it's called, you then head to Ilum. On Ilum, you head west toward the area where you have to destroy the republic mining equipment. In that area you'll find "Depleted" crystals that you can click on. Have a group of 4 or more for this because when you have that item in your bag and you click on the crystal, a boss spawns (not the world boss), but a pretty decent boss from what I've heard. Once he dies, you click on the pool or whatever he leaves behind and the object you were carrying becomes a Magenta / pink / purple crystal. NOW...after you've done ALL THAT.....you have to find an artificer who actually has the advanced magenta / pink / purple schematics that can craft the gem for you. If you get a group together, you can always go and kill the world boss on Belsavis who has a high chance to drop the schematic. Get that, craft your new purple gem, mod your lightsaber blaster, obtain bragging rights... I'm still working on this for my main atm. Hope that helps.
