Board Thread:Wiki Police/@comment-11465615-20130702001058/@comment-10090661-20130702062451

When you spend gems on the Black Market, you are buying a chance at getting the advertised dragon.

The witch says that the dragon is on ONE of the lists. We don't know which one. Every time you change the list, you will have to use gems. Even picking the box is chance only. That's why I've never spent any gems on the Black Market, although some players did get the dragon they want.

So, the short answer is, you can't get your gems back, and you already have a dragon you picked. There was no guarantee in the first place, to get the advertised dragon.