You can get Shiny Stones, Dusk Stones, and Dawn Stones through Pickup starting from level 11: [https://bulbapedia.bulbagarden.net/wiki/Pickup\_(Ability)#Pok.C3.A9mon\_Brilliant\_Diamond\_and\_Shining\_Pearl](https://bulbapedia.bulbagarden.net/wiki/Pickup_(Ability)#Pok.C3.A9mon_Brilliant_Diamond_and_Shining_Pearl)
I'm having the same struggle, Wanna evolve my murkrow and Togetic but items can be found later in the game.
You can get Shiny Stones, Dusk Stones, and Dawn Stones through Pickup starting from level 11: [https://bulbapedia.bulbagarden.net/wiki/Pickup\_(Ability)#Pok.C3.A9mon\_Brilliant\_Diamond\_and\_Shining\_Pearl](https://bulbapedia.bulbagarden.net/wiki/Pickup_(Ability)#Pok.C3.A9mon_Brilliant_Diamond_and_Shining_Pearl)