Published May 11th, 5/11/25 2:07 pm
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You better believe me when I say that a lot of people have tried to figure out what the largest possible diamond vein is in Minecraft. Many people have made blogs on forums or videos on YouTube all about the topic, and that is what has inspired me today: I want to find out the largest number of diamonds possible in a single vein within modern Minecraft. I'll be your host, Dr Illager, and today I'll dive into this conundrum:
Firstly, yes, many people have tried to figure this out, and yes, many people have, as far as I can tell, been able to give a definitive answer, but only for the older versions of the game. Back in older versions of Minecraft, diamonds would generate differently, thus allowing for veins of epic proportions. The easiest conclusion to come to: A single vein had up to 9 diamonds, and so if a vein generated next to 3 other chunks on a border we could have gotten up to 36 diamonds; that is nothing to sneeze at, sure, but that number can get way higher.
As of current Minecraft (everything past 1.18, really), diamonds are able to generate differently. Diamonds now generate in four of what are called ‘batches’, and each type of batch (there are 4 types) is able to generate several blobs of varying size. This blog will focus on the theoretical largest vein, so while the chances are very low of it ever occurring, I will assume that the chunk generates with every single batch possible, with every single possible vein with each vein generating with the very largest number of diamonds.
The first type of batch can generate up to 7 blobs and each blob will have 1–5 ore in each. Again, I will assume that all 7 blobs are generated and that every one of those 7 has a total of 5 diamonds; 7⋅5=35, thus we find 35 diamonds per chunk using just this first batch. The next batch type is determined slightly differently, and things get a bit more complex: 1 blob is able to generate 1–23 diamond ore blocks (either deepslate or stone, but for the sake of the theory I will assume all of this happens in the deepslate layer, since it will be important when we start calculating the additions of fossils, which only include diamonds if they are in the deepslate layer); only one of these blobs can generate per chunk, but we will assume it does generate and we will also assume it generates with 23 diamonds, the maximum number it possibly can. Next the third type of batch, which can generate up to 4 blobs each with 1–10 ore per blob, effectively just another 40 to add to our total. Finally, the ultimate batch: This fourth type can generate the same as the last, up to 4 blobs and 1–10 per blob. The only difference is a small one that does not change this theory: This kind can only generate from y=–4 all the way to y=–63, whereas the penultimate blob type generates from y=14 to y=–63. As I said, it changes nothing, since there is overlap and that’s all we need (it also doesn’t affect fossils, which I’ll cover soon, since fossils also share this overlap).
Batch type 1: Generates 7 blobs with up to 5 diamonds (35 total)
Batch type 2: 1 blob with up to 23 diamonds
Batch types 3 and 4: Each generate up to 4 blobs with 10 diamonds per blob (40 per batch)
Doing our basic maths, we find:
35 (Batch 1) + 23 (Batch 2) + 40 (Batch 3) + 40 (Batch 4) = 138 diamonds per chunk, before fossils.
As promised, however, there are fossils. There are many types of fossils in the game, but I will be using the largest type, which is fossil/spine_4. Fossils, when they generate below y=–8, will have 10% of their bone blocks be replaced with deepslate diamonds; fossils also have a structure integrity of 0.9, which means that 10% of the bone blocks don't generate, and don’t override the natural terrain. However, this isn’t super important, and for the sake of the theory we can assume the nonexistent blocks are obscure ones that don’t need to be attached to the rest of the structure anyway, and don’t have any diamond ore blocks attached (thus implying none of our precious diamonds are stranded from our continuous vein). This fossil in particular generates with 121 blocks, and (rounded) we get 12 more diamonds to add to our pile due to the 10% rule.
New total: 35 + 23 + 40 + 40 + 12 = 150 diamonds per chunk.
And that is just about all we can add. Diamond ore doesn’t generate elsewhere, and while diamond blocks can be found in woodland mansion structures, these don’t generate so deep underground as to be helpful, and, in addition to that, those are diamond blocks, and we need diamond ore. I know it seems obvious, but I am going to say it anyway: Mineshafts don’t actually generate diamond ore blocks, they just delete stone blocks to reveal them.
Therefore our total is that, right? A clean and simple 150 diamond ore blocks per chunk? That’s a lot, and yes, that is in fact the total number of diamonds we can get in a chunk… But chunks are continuous, and generate beside one another; I think you know where I am going, here: If one chunk can generate like this, why not a second? A third? All of these chunks can generate adjacent to one another, and that means, because each diamond ore is still adjacent to its brethren, the vein can get even bigger in size!

(Note that the chunks would need to have their diamonds generate in a way like this, so that they can connect seamlessly)
The Minecraft world border is often known to be 30,000,000 blocks out from the centre, that is, 0,0. This is not actually quite the case. Nominally, it is true, but in practice it is 1 chunk less, and is instead 29,999,984 blocks out from 0,0. What I'm going to do is plan for every single chunk to be absolutely perfect, with all 150 possible diamonds; the number of chunks in a world is easy to calculate. Basic geometry states that if we multiply the width of a world by its length (which are equal, since it's a square), we will find the area.29,999,984² = 899,999,040,000,256 blocks. Now, that number is equal to the total number of blocks. We are not looking for the number of blocks, obviously, but rather chunks. All we have to do is divide our total by 16 (since chunks are 16×16 blocks):
899,999,040,000,256/256 = 3,515,621,250,001
This is, now, the final bit of math in our blog: If there are 150 diamonds per chunk, and 3,515,621,250,001 chunks, all we need to do is multiply the number of diamonds by the number of chunks:
3,515,621,250,001•150 = 527,343,187,500,150 diamonds. That is a very high number, and more diamonds than one would ever need in a world. A Netherite pickaxe with Efficiency V would take almost 6,645,479,860 years of pure mining with no breaks and no time away from the game. I don't know how else to put that into perspective—it is absurdly bonkers! No-one needs that many, but still, ha-ha, there is the answer to the question, and I hope you enjoyed this blog. Yes, this one is kind of long, compared to other Science Theories, but that's just because it was a very maths-heavy answer that required a lot of words to explain. Thanks for reading, if you made it this far, and tune in for the next one! In the meantime, I'll s'ya next time, and remember to keep on LOOOOOOOOOOOORING!!
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THE LOW TAPER FADE
Good job!