Cellon is a gem that allows you to add additional effects to jewellery.
Each accessory shows in its description, in addition to the level required to wear it, the cellon limits it can obtain. The maximum Cellon level and the maximum Cellon you can insert are defined.
Cellon options can range from level 1 to level 10 and are completely random.
To insert a Cellon into an accessory you have to go to certain NPCs like: