How do we know this? Because she said so, that's why!
The pop star took to Twitter to post a picture of herself looking fantastic and showing off her bling from fiancé Jason Trawick, writing, "I can't stop looking at it!!"
If we were carting around a rock like that, we'd stare too.
Britney Spears, Twitter
Check out Britney and Jason in action in her "Criminal" video!