Playing a dragon almost exclusivly, and having never been particularly impressed with any (light/dark/bright)(gem type)(socket type) crystal that I have come across, I never payed much attention to them (I know they are being looked at in general by the devs). Oh sure, I knew of pulsing spectrum, and I had an ardent rough cut firey stone I bought for one of my alts (I've never used it, hes not 35 yet). They seemed interesting, but with no weapon sockets on my main character I just didnt care a whole lot. But now I think I should learn some more about these things. I'm particularly interested in the crystals with interesting effects or nice combinations of stat boosts. Where do they come from? Are they a quest item? Rare drops? Thanks for the help.