There is no Pokemon in sinnoh that evolves by a water stone.
In Diamond, you can obtain a Water Stone in the underground in Sunyshore City.
You can evolve Eevee by giving it:A thunder stone evolves it into: JolteonA water stone evolves it into: VaporeonA fire stone evolves it into: Flareon
There is no such Pokemon item as a 'Damp Stone'. You may have gotten confused between two different items: The Damp Rock (an item found while digging in the Underground) is not an evolutionary stone. It is a hold item which boosts the number of turns in which the move Rain Dance lasts. This increases the power of Water-type moves and decreases the power of Fire-type moves for the duration of the move (which is extended with the aid of the Damp Stone). The Dawn Stone is an evolutionary stone which only evolves two Pokemon (as of Pokemon Diamond and Pearl). When used on a female Snorunt, the Pokemon evolves into a Froslass. When used on a male Kirlia, the Pokemon evolves into a Gallade. No other Pokemon can evolve from the Dawn Stone.
Eevee evolves into Vaporeon (the water version) with a water stone.
A Water Stone evolves a Poliwhirl, Shellder, Staryu, Eevee, and Lombre.
As of Pokemon Diamond/Pearl/Platinum, the Pokemon that evolve via Water Stone are: * Poliwhirl (evolves into Poliwrath) * Shellder (evolves into Cloyster) * Staryu (evolves into Starmie) * Eevee (evolves into Vaporeon) and * Lombre (evolves into Ludicolo)
Eevee , poliwhirl, shellder, staryu and lombre Issac Lim
There is no Pokemon in sinnoh that evolves by a water stone.
well on heart gold he evolves at twenty into quagsire.
poliwhirl evolves into poliwrath with a water stone
Lotad evolves at level 14. LOTAD --lv14-->LOMBRE --water stone--> LUDICOLO
water stone
Only the following Pokemon require a water stone to be used on them for them to evolve. Poliwhirl to Poliwrath Shellder to Cloyster Staryu to Starmie Eevee to Vaporeon Lombre to Ludicolo Panpour to Simipour
EEVEE evolves into VAPOREON by using a water stone
The only one I know of is Eevee which evolves into vaporeon.
In Diamond, you can obtain a Water Stone in the underground in Sunyshore City.