So let me start by stating the obvious: You play a game, and earn both Gems and Treasure Shards. The Gems can only (To my knowledge) be used to unlock kits to different games. The shards can only really be used to purchase chests. Now sooner or later, players will get to the same position I am in: You feel like you have just too many Gems and not enough shards. So here, we come to the point of this post: Why not add a conversion from Gems to Shards and Shards to Gems?