You can't find one walking around unless you're in mt.cornet looking for cleffa and clefairy. Because sometimes cleffa and clefairy have some with them. But where I find most of mine is underground. So make sure to look there!
The moon stone is used in Pokemon Diamond to evolve certain Pokemon. You can find one by looking in the Underground.
You get a leaf stone underground.
In Diamond, you can obtain a Water Stone in the underground in Sunyshore City.
evee
no you can only get a dusk stone on Pokemon diamond and pearlYou can't.
thunder stone
The moon stone is used in Pokemon Diamond to evolve certain Pokemon. You can find one by looking in the Underground.
moon stone
There is no such thing as a rock stone.
You get a leaf stone underground.
In Diamond, you can obtain a Water Stone in the underground in Sunyshore City.
The dawn stone is an item that is used to evolve certain Pokemon in Pokemon Diamond. To get this item, search in Mt. Coronet.
to evolve certain Pokemon
murkrow
evee
the moon stone.
no you can only get a dusk stone on Pokemon diamond and pearlYou can't.