Ok, first don't even bother saying "no picks no clicks" cause you have no **** and wont get chicks. This seed is simple.
You spawn in a forest biome, just look around till you see a cave, follow that cave and reach a ravine. 3 diamond veins in the ravine. One vein is at the end of a lava lake, on the ceiling. The other is under some gravel. The vein at the end of lava lake has 7 diamonds. Theres a total of 29 diamonds to be found. NO mining is needed, except for gravel.