- Diamonds, as the core in-game currency, mainly circulate in Trade and Auction, which addresses the needs of both paying users and free-to-play users.
- In Trade, all players can exchange goods they want. While different users have different demands for tradable items such as gears, talents, and potions, the demand is especially high among paying users. This altogether makes diamonds an important currency in circulation (see below).
- In Auction, free-to-play users can get diamonds more easily. The Auction system works pretty much the same as Trade, but it is based on guilds. Rewards obtained in crucial guild events will be auctioned, and the diamonds received will be distributed evenly to members who participate.