But if you want a water stone, trade one over from firered/leafgreen on a Pokemon or you can find one in the underground.
yes you can
you can find them underground if u look long enough
There is a store at the end of the game where you can buy different stones for evolving.
Well you can't really get 2 unless you have 2 ds's and have Pokemon diamond bcuz then you could just send up two pokemon that are holding water stones
You don't. That is only in Emerald version.
To get the Pokemon Poliwrath in Pokemon Diamond version you have to evolve a Polywhirl. To do this, you need to expose it to a water stone.
Here are SOME stones: dawn dusk leaf fire sun water oval stone everstone (prevents Pokemon from evolving) moon thunder these are all of the stones i know about.
I'm not sure of exact locations for the stones you find, but you can purchase them on the fourth floor of the Celadon Dept. Store
CATCH A WATER TYPE POKEMON!!! BUIZEL!,MAGIKARP!
shiny,dawn dusk,fire,water,leaf,and wish stone. by-dagr81 and oval stone by totallychoco
Manaphy (sometimes wrongly spelled as Manaph) is a water type of Pokémon. It is possible to get this Pokémon in Diamond version.
Thunder stones, Water stones, Fire stones, Leaf stones, Shiny stones, Dusk stones, Oval stones, Moon stones, Sun stones.