- "Turn Up!"
- ―Transformation announcement
The Diamond Buckle is the transformation device that Kent Newman uses to become Kamen Rider Diamond Warrior. It was designed for specific compatibility with the ♦A: "Change Stag" Rouze Card & harnesses the DNA of the Stag Undead. This model utilizes the "Turn Up" mechanism (similar to the Spade Buckle) to produce a stationary transformation screen, which initiates the fusion of Undead DNA with a human to produce the Kamen Rider transformation. Coincidentally, the transformation screen itself can act as a deflective wall against assaults.
- Garren Buckle - Kamen Rider Blade counterpart at Kamen Rider Wiki