Gems
Overview
Gems are a premium currency in Dungeon Defenders 2. You can obtain 450 Gems by completing certain Adventures.
They can only be obtained by purchasing them with real-life currency in the in-game shop, buying certain DLC's, or Winning them through giveaways.
Gems can be used to purchase Heroes, Shard Packs, cosmetics and other items in the Emporium.