Care to help us /b/tards out?

There's this question that just keeps coming up, and we can never seem to agree on the answer. I thought you science people might be able to set things straight:

IS DIAMOND A METAL????????

>>9
By observing their reaction to it?
Example:
I have not laughed, or even thought to myself 'hm, this is mildy amusing', even once, directly after exposure to this meme. Conclusion: I cannot consider it to be funny.