What is the best minecraft seed for lots of diamonds?

Diamonds, or -666, which has 2 super cool ravines and in the shorter one it has exposed diamonds in two places. 404 is also a great seed. You will see a gravel beach near the spawn and if you punch one of the blocks a HUGE cave will appear that goes down to lava level No, you have to go mine to get diamonds.

No, you have to go mine to get diamonds.