From the Kingdom Hearts Wiki: A world of information not accessible by Gummiship
Aced's Keyblade is the bulkiest of the foretellers' Keyblades. The handle is gray, and the guard and outer base are jagged and dark blue/teal in color. A brown bear with red eyes is set at the base. The shaft is brown with a very wide black area in the middle. Cream engravings adorn the dark area, the topmost of which resembles Terra's Mark. The end of the blade curves back towards the base, and this and a bit protruding from that side form the Keyblade's C-shaped teeth. The Keychain consists of red gems connected by a brownish chain and a brown token with a Gazing Eye at the center.