Yes you can but you have find the gems first .
Pokemon Emerald: Birth Island Pokemon Sapphire: Trade from Pokemon FireRed, LeafGreen, or Emerald. Pokemon Ruby: Trade from Pokemon FireRed, LeafGreen, or Emerald.
Trade it from Pokemon Emerald/Ruby/Sapphire
You can do this after you find the Ruby and the Sapphire for Celio in Pokemon FireRed. then you can trade with Ruby, Sapphire and Emerald.
You can't catch it on Sapphire. You have to trade it from Pokemon Emerald/FireRed/LeafGreen
trade
You must trade kyogre from sapphire or emerald to firered to obtain it.
Trade ditto from firered, leafgreen or emerald to sapphire to get one.
You must trade from Ruby, Sapphire or Emerald.
You can't catch Ditto in Pokemon Sapphire, but you can trade it to your game from Pokemon Emerald/FireRed/LeafGreen
You can't catch a ditto in Pokemon Sapphire, but you can trade it from Pokemon Emerald/FireRed/LeafGreen.
You can trade with another sapphire, ruby, emerald, firered, leafgreen, Pokemon colosseum, Pokemon xd gale of darkness and Pokemon box ruby and sapphire.
trade from sapphire or maybe theres a code