i think you have to go unlock the 123 islands
One Gem is at One island and the other one is at Four Island. this is not true it is near island 6
After beating u should get the Sapphire Gem. Now go to 1 Island's Pokemon Center. Talk with Celio
The arcade
you find the ruby in the cave right next to mount ember on island 1. to get the sapphire gem you have get the pass from celio to go to island 4567 and it is on island 6
after you give Celio both the Ruby and Sapphire GEM stones he will then transmit data signal to Lanette Pokemon Box who is in the Hoenn Region and allow you to trade back.
To get the ruby and the sapphire gem and to deliver them to a guy near a big machine in the one island Pokemon center this will allow you to trade with ruby and other hoenn games.
One island Pokemon centre after you defeat elite four and the 2 rockets at the volcano and find the gem.
use cut hm 01
it evolves fire types
wear do you go after 4 gem onpokemon fire red
kill the fire mage in portalundead
You can find the red gem at Boyleland in the Volcano Cave.