I know the smallest is 1 diamond out from my own experience in finding diamonds, and I have found 11 in one vein once. Is this the largest vein that can possibly spawn?


Minecraft generates 1 vein per chunk, but doesn't look at other chunks when doing so, so it is theoretically possible (but extremely unlikely) to find a "megavein" of 32 diamonds comprised of 4 adjacent 8-diamond veins on a chunk crossing. It's much more common to find 9-10 diamond "veins" as, say, a 4-diamond and a 6-diamond vein align along a chunk border.

  • 1
    What would be the chances of this?
    – Diehe
    Dec 14 '21 at 14:33
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    @Diehe the base of finding diamonds is 0.0846%. So 0.0846 times it's self a cupple of times = 0.0000512249392656%. but it would be even lower then that because finding them next to eachother is even rarer so about 0.000000002623994% Dec 14 '21 at 14:44
  • Those are some pretty low odds. Do we know of anyone who has found anything close?
    – Diehe
    Dec 14 '21 at 14:57
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    @Diehe most of the ones you find online are staged but i am sure you can find some that are not Dec 15 '21 at 12:31

Updated to version 1.18, Caves and Cliffs:

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
  • The second batch generates in 1⁄9 chunks in blobs of 0-23 ores, from Y=14 to Y=-63
  • The third batch generates 4 times per chunk in blobs of 0-10 ores, from Y=14 to Y=-63

(Each one being more common as the y-level decreases.)

This means that you may eventually find a 23-diamond vein on a single chunk, with multiple 10-diamond veins on adjacent chunks. Making a grand total of 53 diamonds for a single vein. Theoretically. This seems extremely unlikely, as @Pink_killer2 suggested.

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