If by stones you mean water stone, fire stone etc, there are the water, fire, thunder, leaf, sun and moon stones. You can get them by finding them or trading them for shards with the hunter, who lives on an island northwest of Mossdeep. However, you can't trade shards for the sun and moon stones.
Note: Some Pokemon below can only be obtainable by trading/cheating.
Pikachu + Thunder Stone = Raichu
Nidorina + Moon Stone = Nidoqueen
Nidorano + Moon Stone = Nidoking
Clefairy + Moon Stone = Clefable
Vulpix + Fire Stone = Ninetails
Jigglypuff + Moon Stone = Wigglypuff
Gloom + Leaf Stone = Vileplume
Gloom + Sun Stone = Bellossom
Arcanine + Fire Stone = Growlithe
Poliwhirl + Moon Stone = Politoed
Poliwhirl + Water Stone = Poliwrath
Victreebel + Leaf Stone = Weepinbel
Shellder + Water Stone = Cloyster
Exeggcute + Leaf Stone = Exeggutor
Staryu + Water Stone = Starmie
Eevee + Water Stone = Vaporeon
Eevee + Thunder Stone = Jolteon
Eevee + Fire Stone = Flareon
Sunkern + Sun Stone = Sunflora
Slowpoke + Moon Stone = Slowking
Scyther + Leaf Stone = Scizor
Porygon + Sun Stone = Porygon2
Lombre + Water Stone = Ludicolo
Nuzleaf + Leaf Stone = Shiftry
Skitty + Moon Stone = Delcatty
Get a Green Shard in the dive spots around Mossdeep City, and trade it to the Hunter. He will give you a Leaf Stone in return.
You can trade for it with a Blue Shard on Route 214 to a guy inside the house, or you can find it in Abandoned Ship.
Seafoam islands, Bill's Grandpa, Pokedome Mon; Tues; Wed; Fri, and Fisherman Tully.
Moon stone, water stone, fire stone, thunder stone, leaf stone.
underground
The best water Pokemon in sapphire would probably be Kyogre. -Hope I helped...:D
you can get it by going to route 119 at the tall grass
It can be used to evolve Pokémon.Jigglypuff into Wigglytuff,Skitty into Delcatty.
EEVEE evolves into VAPOREON by using a water stone
All Pokemon that evolve with the assistance of a Fire Stone: Vulpix Growlithe Eevee Pansear. So, no Pokemon in the third generation require a Fire Stone to evolve.
Yes, the water stone from Pokemon looks like Sapphire.
Staryu
There is only one pokemon you can use it on and that is eevee to get vaporeon
no level,you need to use a water stone
There is no mist stone in sapphire.
youcan not get shinys on Sapphire
Yes in fact you can get dozens if you trade with firered or leafgreen because they can buy water stones all they need to do is trade you a Pokemon holding the water stone and when you get it just take the water stone from it!
Well there is only about 3 Pokemon that evolve with the sun stone and 2 in Pokemon sapphire gloom and sunkern which turn into bellossom and sunflora.
you need the sapphire stone you get on the islands in fire red
get a blue shard and talk to the treasure hunter. his house is on the water before Mossdeep City. give the shard to him and he'll give you a water stone(:
we can get a moon stone on meterear falls
Lombre requires a water stone to evole and there are eevee's near the bike trail so you can catch and evole that. You can give your pickau a thunder stone if you want.