Shinning Diamond is an alien being that it's body is a crystal that's harder than diamond and an eyeball connecting to it's brain that is inside of it's shell made out of crystal.
While, AsiDeci was fighting by Tefnut and Atum. Shinning Diamond appeared on the RA HQ underground base and easily destroyed the ceiling making various debris and buildings fall on top of the base, but soon Ultraman Shu appeared to defeat it. After various attacks of Shu being deflected by SD's shell Shu throws his Feather Slugger against SD's eyeball making it blind and with the advantage of it being blind Shu used his Color Timer Beam on the hole where it connected to it's brain and quickly killing it.
- Blood Control: Shinning Diamond can eject blood from it's eye and use it as a weapon.
- Shell: It's shell is more hard than an diamond making it almost ivencible, but it can be scratched seen when Shu's Feather Slugger made an scratch on it.
- Shinning Diamond's design is based on the 5th Angel (6th on the Rebuild Series) Ramiel of the anime series Neon Genesis Evangelion;
- Shinning Diamond's name comes from the song the Freddie Mercury song Shine on You Crazy Diamond;