he doesn't need a stone he evolves with his friendship is maxed out or something just get a masage in veilstone city oh and level him up in the day then he should evolve
If held, it evoles Happiny into Chansey when leveled in the day.
male evolve into gallade and female into gardivour
Happiny is the only Pokemon that can evolve from a Oval Stone in Pokemon Diamond, Pearl, and Platinum. You will need to max its Happiness during the morning or day, let it hold an Oval Stone, and then level it up once. It will, then, evolve into a Chansey.
There is no Arcanine in Pokemon Platinum. You must find a Growlithe and evolve it with a fire stone. You can find Growlithe in Route 201 and 202 with Pokemon FireRed in your GBA slot.
Croconaw evolves at level 38, not by a stone.
It does not evolve with a dusk stone in Pokemon Platinum
eevee
toolmon obviously
you have to get a shiny stone to evolve togetic to togekiss
You need to evolve it with a Shiny Stone. This stone is found in Victory Road!
happini can evolve with a oval stone
Evolve Kirlia With A Dawn Stone.
You have to get the Moon stone.
Evolve from a Murkrow with a Dusk Stone.
Shiny Stone
evolve murkrow to honchcrow evolve misdreavus to mismagus
Riolu evolves from happiness. If he's really happy he will evolve. Normally around levels 26-34.