PIKACHU
thunder stone
skitty
Lombre can evolve into Ludicolo with a Water Stone (Lombre can also be traded to evolve).
No stone it has to reach lvl38 or so then it will evolve
Skitty evolves into Delcatty through the use of a Moon Stone in Pokemon Ruby and Sapphire.
gloom into vileplume.
Jigglypuff will evolve into Wigglytuff with a Moon Stone.
Here are all the pokemon that evolve by water stone: Lombre, Evee, Staryu, Shellder.
Use a moon stone.
Pokemon requiring a stone to evolve:Eevee - Thunder stone, Jolteon (you can't find this Pokemon in Ruby) Eevee- fire stone, Flareon (you can't find this Pokemon in Ruby)Eevee- water stone, Vaporeon (you can't find this Pokemon in Ruby)Sunkern- sun stone, Sunflora (you can't find this Pokemon in Ruby)Jigglypuff- moon stone, WigglytuffSkitty - moon stone, DelcattyNidorino- moon stone, Nidoking (you can't find this Pokemon in Ruby)Nidorina- moon stone, Nidoqueen (you can't find this Pokemon in Ruby)Growlithe- fire stone, Arcanine (you can't find this Pokemon in Ruby)Gloom- sun stone, BellosumGloom- leaf stone, VileplumeStaryu- water stone, StarmiePikachu- thunder stone, RaichuLombre- water stone, LudicoloNuzleaf- leaf stone, ShiftryVulpix- fire stone, NinetalesHappiny- oval stone Chansey
A sun stone evolves with a gloom and maybe even a sol rock too in Pokemon ruby.
The stone is not for evolving.You need it to restore the Pokemon Network Center, after that you can trade with Ruby Version.