Katt, I think you are referring to Smuggler's Lanterns. Those are obtained by using a Smugglers Edge against creatures in Fel, but the EA store no longer has the Edge available. Due to this, the in game price of the Edge seems to have gone up a little. On other shards those lanterns go for less than 100k, but I haven't seen any for sale here (I love them and wanted one myself since my thief is stuck on Atl with his pile). There was an early exploit with the Edge that allowed players to steal of their own mirror image, and many of the potions obtain similar to the edge were mass produced this way, ruining the value too some degree. I don't know if the lanterns could be similarly exploited, but if so Siege might have a stockpile since I believe this is where the exploit was first