Thread:Hyper ch/@comment-4830404-20121220031340/@comment-4830404-20121220183708

That's what I mean by "good gem" vs. "crap gem". The Super Rares will trade for the big ones, the commons only trade for the small ones...

I have not done enough tests yet to confirm whether there's a slight randomness of gem quality or if it's always the same for each rarity.

Also you can use the Spell Shop to upgrade smaller gems to bigger ones. The gem dragons require several of the highest quality gems, and you need a lot of the low quality gems to make one high quality (takes 6 hours to make one trade... takes 6 hours to craft once... so very time consuming)