>>58261238A Gardevoirite stone can also be obtained through regular gameplay.
• It is possible to have no more than one of each kind of Mega Stone.
• If one of your Pokémon is already holding a Gardevoirite stone, the Ralts you receive will not be holding an item.
Judging by the wording it's safe to assume we can only have one in our bag and held byba Pokémon at a time. Perhaps we can hypothetically force the game to give us multiples of each stone via hacking.
