Bill's grandpa (north of cerulean) will give it to you if you show him a certain pokemon.
But if you want a water stone, trade one over from firered/leafgreen on a Pokemon or you can find one in the underground.
me dont nkow
you find them in mt.moon
there isn't one there...
You can't find vaporeon you need to use a water stone on an Evee to make it become Vaporeon.
You can get 2.
In Mt ember you can find one somewhere.
You have to evolve a Jigglypuff using a moon stone.
You can buy one at the department Store in Celadon City.
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
There are various things to do in the Rune Valley area on Pokémon LeafGreen. For example, you can find the sun stone there.
at island 6 u can find a place called the dotted hole u can find it there!