I think it's Lv 11.
Hope I Helped.
in pokemon diamond a cascoon evolves at lvl 27
lv10, Cascoon evolve into Beautifly.
Cascoon evolves into Dustox at level 10
Level 10.
The Pokemon cascoon will evolve into Dustox at level 10 =D
At level seven it will become either a Cascoon or a Silcoon depending on whether it is a male or female. Then at level 10 it will evolve into a Beautifly or a Dustox.
Silcoon and Cascoon.
Cascoon evolves a level after it was court
It evolves at level 10, into Dustox.
Cascoon and silcoon evolves at lv 10 (i hope i helped)
To evolve a cascoon, it must gain levels. To gain a level with a cascoon, either attack with it, or if impossible, place it as your active pokemon and switch out at the start of the battle. If you have a EXP share, give the cascoon that and battle with a different pokemon.
Rephrase your question = What level does snorlax evolve on Pokemon diamond? =