Fire Stone:

Causes Vulpix to evolve into Ninetales.

Causes Growlithe to evolve into Arcanine.

Causes Eevee to evolve into Flareon.

Water Stone:

Causes Poliwhirl to evolve into Poliwrath.

Causes Shellder to evolve into Cloyster.

Causes Staryu to evolve into Starmie.

Causes Eevee to evolve into Vaporeon.

Causes Lombre to evolve into Ludicolo.

Thunderstone:

Causes Pikachu to evolve into Raichu.

Causes Eevee to evolve into Jolteon.

Leaf Stone:

Causes Gloom to evolve into Vileplume

Causes Weepinbell to evolve into Victreebel.

Causes Exeggcute to evolve into Exeggutor.

Causes Nuzleaf to evolve into Shiftry.

Moon Stone:

Causes Nidorina to evolve into Nidoqueen.

Causes Nidorino to evolve into Nidoking.

Causes Clefairy to evolve into Clefable.

Causes Jigglypuff to evolve into Wigglytuff.

Causes Skitty to evolve into Delcatty.

Sun Stone:

Causes Gloom to evolve into Bellossom.

Causes Sunkern to evolve into Sunflora.

Shiny Stone:

Causes Togetic to evolve into Togekiss.

Causes Roselia to evolve into Roserade.

Dusk Stone:

Causes Murkrow to evolve into Honchkrow.

Causes Misdreavus to evolve into Mismagius.

Dawn Stone:

Causes male Kirlia to evolve into Gallade.

Causes female Snorunt to evolve into Froslass.

Oval Stone:

If held, causes Happiny to evolve into Chansey when leveled up during the day.