ROM save file to GBA SP emerald cart

I’ve seen several posts on this topic but not quite this same use case .

So I’m shiny hunting using mGBA with Emerald rom (clean) on my pc, lets say I get 50 shinies and I decide I want to grab that ROM save file , put it in a microSD and see if I can put it into an emerald cartridge and then play it in a GBA SP as if it was a normal save from playing the game in the GBA SP.

is it possible? I’ve seen the other way around it’s possible with ds flash carts, but I’m wondering this specific use case.