I found a seed where if you go to the desert bio in the bottom right of the map you will find a village. There will be a chest with about 6 diamonds.(I forgot how much) there is also another village by the top right corner of the map.The other village has more diamonds but I don't know how much. There are very big caves and it's a great map for survival.
The seed is: -9112652585177887426
Make sure if this is the correct seed that you spawn in a winter forest biome.