Well, there's two ways to look at that. A diamond is harder than any bullet, yes, but diamonds can shatter from blunt force impact - and it's not uncommon at all (ask any gem cutter).
A bullet probably could not penetrate a diamond as it would the hide and flesh of an animal, for instance, but the tremendous energy of the bullet could shatter the diamond on impact if the diamond was hit in 'exactly' the right spot, or if the back of the target was also diamond, resisting the energy and focusing it on the target diamond.
Diamonds are small enough and valuable enough that you should not try this at home.
she wants to be bulletproof
BulletProof Music was created in 1997.
BulletProof Messenger was created in 2001.
la roux is the singer to bulletproof.
no, it isn't. Kevlar is the material in bulletproof vests
There is currently no bulletproof laptop case,although there are bulletproof laptops used by the military.
Gorilla glass is scratchproof, but I don't think it is bulletproof.
The duration of Bulletproof Monk is 1.73 hours.
Bulletproof - soundtrack - was created in 2009-01.
Bulletproof Heart was created on 1989-10-13.
Bulletproof Monk was created on 2003-04-16.
Bulletproof Wallets was created on 2001-11-13.