it still work if it's done through GTS trading? i asked for a Boldore, expecting that it would evolve into a Gigalith, and i still got a Boldore. (though they gave it an Everstone before trading for some reason) wanna know for future GTS trading for pokemon that trade evolve (like karrablast traded for shelmet, and asking for a graveler hoping for a golem, etc)
It'll normally work through the GTS, yes. The Everstone is what prevented the evolution. IIRC, though, Roggenrola and Boldore have a 50% chance of being found holding an Everstone in the wild, so the person trading the Boldore might not have realized or remembered it was there.