How do you get a Dawn Stone on Diamond version?

Question

Pls I really need one

Answer 1

Non-repeatable
- Route 225 (Requires Rock Climb, ledge in the north)
- Mt. Coronet (Requires Surf, south corner of the first floor)

Repeatable
- Pickup (Level 51-100, max chance of 10% starting at Level 71)

Dawn Stone (Bulbapedia)

Answer 2

You can get one in mount coronet and another one in Route 225... far, huh?