How can I get the "Diamonds to you!" achievement in single player? [duplicate]
How do you get the "Diamonds to you!" achievement if you're in single player?
On singleplayer, you can get the achievement by throwing a diamond at a zombie or skeleton capable of picking up items.
Not all zombies and skeletons are capable of picking up items, it's a random chance upon them spawning, so you may need to try a few before you find one that can.