I dug straight down, this time only 1x1 instead of 1x2. I was looking for diamonds so I kept going down instead of looking through that cave up there if you can see it

doing this was a dumb idea because where I landed was next to this:

but it was also a great idea because I landed next to THIS :DD

EDIT: I think this is a map generation fail/glitch. I found 9 diamonds in this vein.
and I dug into that little hole (inb4lovejoke, cigarettegolas) a little further and found a spawner, some lava, some iron

and more diamond :DDDDDDDDDDD

and no, Im not saying the little area of lava and the spawner are a map generation fail, Im saying the vein having 9 diamonds and not 8 is a fail.. unless you can have more than 8 diamonds in a vein?