there is no part like that in Pokemon diamond
level 20
let him eat rare candy
Torterra
go to tranier HQ click on my Pokemon a list of Pokemon will appear which u have caught if they are evolving a option will come evolve me.
You go to "Setup My Pokemon team" and click on the Pokemon you want to evolve..if there is a possible evolution there will be a link called YES! click here to evolve Into ___"
trade online
it will evolve when you level it up with max beauty
Find It In League Champion - Steven on the online Pokemon Indigo
it evolves at level 32.. Even i have done it now..
LVL 45.
Gligar Evolves at Level 35
by using a leaf stone