How can I get diamonds in minecraft?

First off, you must know that diamonds are extremely rare to find in Pocket Edition. If you want to find diamonds the easy way, make a new world, and type in jpgaming for the seed. 100% of the time you will find diamonds if you dig straight down from the spawning point. I would reccomend putting dirt or something around the spawining point so you remember where it is because you have to make your house,mine,craft etc. Hope this works!