"Diamonds to you!" achievement unattainable in single player.

The "Diamonds to you!" achievement that once was available in single player is no longer available. Zombies will not pick up diamonds that players throw at them, so obtaining is impossible. Minecraft needs to be a complete game as a single player experience, able to do everything you would normally be able to do in multiplayer. Please add diamonds to the list of items that Zombies can pick up.