I wanted to do some testing with the Nether so I made a fresh world on Survival, with cheats enabled. I used the following command to give myself 64 diamonds:
/give [me] 264 64 264
But for some reason I can't craft with them:
I tried this on a couple different worlds and I have the same problem. So I downloaded a fresh Minecraft install from the website (1.4.2), and deleted the .minecraft folder so a new one would be generated. Created a brand new world, survival, with cheats enabled, same problem.
What am I doing wrong? Is it normal to not be able to craft with cheated items?