Minecraft wiki entry for Diamonds, associated text: Diamonds can be obtained from diamond ore, a rare find found in about ~0.0846% (~1 in 1200) of blocks in levels 5-16. Diamonds can be found anywhere beneath layer 16, but is most common in layers 5-12 in version 1.17.1 and below; in versions 1.18 they are expected to be most common between layers -50 - -64. Most players find it through caving or mining.