Moonstones can be found by digging in the Underground with your Explorer Kit. It is one of the treasures you can find by digging into areas of the wall where you see sparkles when you press the touch screen. It is very rare in Pearl, but not by any means impossible to find.
In the UK Pearl or Moonstone In the US, Pearl, Moonstone or Alexandrite
You are to use a moonstone that you usually get from someone or find in caves.
== == Pearls moonstone and Alexandrite are all June birthstones Pearl, Rhodalite, or Moonstone
Moonstone makes pokemon evolve.
Pearl, Moonstone....
in mt.moon
you use the moonstone
you can find it under ground in poke'mon diamond, pearl and platinum. in ruby sapphire and emerald you find one meteor falls.
poketch
Insert Pokémon Emerald version into your DS and then go to Route 211 or Lake Acuity on your Pearl version. You might find a wild Teddiursa, but it is uncommon.
You can get it from evolving it atrually or with a very hard to find moonstone I think, or you can also find them in Mt coronet hope this helps a lot! Pokemon diamond version for sure!
find a wailmer then evolve it