This minecraft seed features two npc villages and a massive cave system with diamonds in it. Also a snow biome close to one of the villages.
NPC village at X: 60 Z: 115
A second npc village is at X:81 Z:1301 in a desert biome nearby is a snow biome.
Absolutely massive cave system at X: -134 Z: 164
diamonds in the cave system at X: -264 Y:13 Z:31
There were many other visible diamond veins in the cave system as well as all other types of mining resources. It is truly an epic cave system and worth some time spelunking.