I've been working on getting the quests in for the glowing diamond shards. Unfortuneately I can only do two of them for now, since I need 4 more levels in my combat job to pick up the next. If anyone else can add in any info etc about these quests (or the other ones that need wikified still) it would be appreciated!
If you haven't done any of these yet and you are a member, definitely look into them. The blue glowing shard is the easiest so far, and I think it looks nicer than the purple anyways. :)