Been a while since I last played, and I can't remember anywhere to get a Dawn Stone, except for the Bug Catching Contest. Only problem is, the last three times I won the contest, it gave me a Sun Stone, which I have no need for at all.  Currently, I'm at Dildadon, and have yet to do the story element for the city. Is there anywhere I can get the stone without pushing further ahead? Wanting to go ahead and get my Gallade now, so I can use my Everstone for a different pokemon.

Well. Personally I can't remember where were the most of the Dawn stones yet the easiest and closest to Dildadon city without getting any further in story or after story is to have caught 80 pokemens and talk to scientist dude in Dildaldon city park. The 80th capture prize is the Dawn stone.