Minecraft Diamonds are found below Y-level 16 and become more common the deeper you go. Anything around Y-50 to Y-59 be good.

Diamonds are usually a randomly generated resource in Minecraft, however, it’s quite possible to find and farm them irrespective of the world that you generate. There have been significant ...

To find diamonds in Minecraft, you'll need to dig down to at least layer 15 with an iron pickaxe or better. You can see what layer you're on by opening the debug menu or by changing your settings.

These include Diamond swords, shovels, pickaxe, and hoe. Armor: Diamond armor is among the best you can find in the game, and it is only second to the Netherite armor.