i think you get it in meteor falls up some steps
I can only help you but NOT Pokemon ruby...
Moonstone makes pokemon evolve.
clafairy
use a moonstone
Meteor Falls on the left
Pokemon ruby's version IS Pokemon ruby.
Check Serbii. net
There are some in the game alternately if you catch many lunatone you can get more.
Moonstone
how to get raqueza in littletown in Pokemon ruby version
This legendary Pokemon can only be acquired on Ruby Version through trade from Sapphire Version or Emerald Version.
If you finish ruby get another version of pokemon.