No Lucario does not evolve in any version of Pokemon. Lucario is the fully evolved form of its preceding evolution, Riolu.
The coolest Pokemon in diamond would be Lucario, a fighting and sttel type Pokemon. To get one, you have to help Riley on Iron Island and he will give you a riolu egg. Hatch it and evolve it (by happiness) to get a Lucario.
Lucario doesn't evolve. What, were you expecting a really wicked Pokemon?
lucario
lucario
Yes, because it is more powerful when it evolves into a Lucario than just staying a Riolu.
you have to go iron island and find riely,then help him get to the end of the cave then he will give you a egg and it will hatch into a rilo then when you evolve it,it will be lucario
You must raise Riolu's happiness to the maximum then level it in order for it to evolve into Lucario.
You can have an egg with a ditto at the Pokemon daycare center with your riolu and evolve that Pokemon into a Lucario.
He is in lots of different Pokemon games, like diamond and pearl.
Shaymin does not evolve in Pokemon Diamond.
Riolu (baby lucario)
Diamond