fire red:
after you give the sapphire to celio, now you can trade with Pokemon ruby, sapphire and emerald
You give it to Celio
When you give him the ruby and sapphire gem.
honestly dude i dont think you can trade from sapphire period.
You also find the sapphire and give them both to Celio.
Give it to celio in 1 island
Your supposed to give the ruby first to him that's how you get the rainbow pass to get the sapphire.
FireRed. If Ruby, Sapphire, and emerald you must have Ruby and Sapphire gem and give it to celio in one island
You can trade with Sapphire and Ruby
You cant have the ruby and sapphire at the same time because you have to give the ruby to celio in order to get islands 4-7 which is were you get the sapphire
You get the Sapphire in ruin valley and give it to celio.
give it to celio and then mewtwos cave will be unlocked
The elite four will open and they will be stronger and you can now trade with ruby, sapphire and emerald.