It depends on what terrain you are on if you on a really mountainy area then there will probally be lots of dimonds :D
Chat with our AI personalities
i think its y=0?
You need to be level 26 or higher
Diamonds can be found below level 16.
The sea level is 64 on Minecraft. That means from sea level, y=12 is 52 blocks down.
I find diamonds by mining at bedrock level.