Minecraft wiki entry for Diamond_Ore, associated text: In Bedrock Edition, Diamond ore attempts to generate in three batches. The first batch generates 7 times per chunk in blobs of 0-5 ores, from Y=14 to Y=-63, being more common as the y-level decreases. The second batch generates in 1⁄9 chunks in blobs of 0-23 ores, from Y=14 to Y=-63, being more common as the y-level decreases. The third batch generates 4 times per chunk in blobs of 0-10 ores, from Y=14 to Y=-63, being more common as the y-level decreases. Diamond ore is also less likely to be exposed to air: 50% of ore blocks from the first batch and 70% from the second batch will not generate. The third batch requires 100% no air exposure to generate. Diamond ore can replace stone, granite, diorite, andesite, and deepslate. Diamond ore that replaces deepslate will become deepslate diamond ore.