No way that's the same size as say GSP or Anderson's belt right? 
paging PTSandman
hey. the UFC is like any business... save a buck here and there where you can
It's a 1/3rd scale model. 
definitely smaller
He moved so fast I couldn't tell
I actually always wondered about this; Whether or not the belts were scaled down a bit for the lighter weight classes.
The thing looked pretty big to me. Hell, he slid out of the fucking thing...