How to easy find diamonds?

Doing so will clear out a strip of the mine; as you dig, make sure you're looking for diamonds in the ceiling and floor as well.

• You'll repeat this process until your whole main tunnel has been expanded, then dig further and repeat as necessary.
  
• Make sure to dig around the ores in case there's lava. Sometime ores will have lava behind it. If you find lava behind the ore, use non-flammable blocks to stop the flow of lava.