Brilliant Diamond Fragment — character-ascension material for the Traveler.

It is obtained as an Adventure Rank reward.

Once you reach certain Adventure Rank thresholds (e.g., AR 25, 26, 28, 30), you can go to the Adventurers' Guild (in either Mondstadt or Liyue Harbor) and claim the reward from the receptionist (typically Katheryne).

As a character-ascension material, it is used to ascend the default playable characters, Lumine and Aether (the Traveler), making it a very frequently used material.

The above content is compiled by ModeZone, a fashion and entertainment magazine.