How to find diamonds in minecraft in minutes?

Dig and mine

Branch mine. Dig to the the 12 level (or so, can't remember) then make a small room. Then mine outwards in all directions. Your mines should be two blocks apart. Don't mine a tunnel if you have already seen the blocks on one side.

Or you could find a ravine and check large surfaces at the bottom really fast for diamonds.

Tip: enchant pics until you get fortune. Save all diamond veins until you get this fortune pic as it will earn you Way more diamonds.

You have to dig, really deep. Here is a link that can help you, http://minecraft.gamepedia.com/...om/Diamond. Hope this is useful.

Minutes is difficult, but here's the steps.

1. Get to an iron pick. This basically means getting a furnace going which means you'll have to go through the wood pick/ stone pick progression to get iron.
2. Dig down to Y level 1~16. You can use the F3 key to see your coordinates.
3. Create a small base. Basically you'll need a chest, crafting table, and furnace. If you are a long way from your spawn point a bed would not be a bad idea.
4. Start industrial mining. Pick a direction and dig a 1-block wide, two block tall horizontal shaft. You can diverge to pick up any minerals that appear in the shaft. Make sure to light it.

If you get tired of digging that shaft, or believe that it has gotten too long, head back to your base, move a few blocks over to the left or right (at a minimum two blocks) and repeat.

This method seems slow, but it is faster and more reliable than simply exploring caves.

Dig to y = 12 and start mining straight ahead