Gold-tone necklace with sun pendant

I lost my gold-tone necklace yesterday around 6pm near the Pybus Public Market on Worthen Street in Wenatchee. It's an 18-inch delicate chain with a small sun-shaped pendant about the size of a dime, etched with tiny stars along the edge, and the back is engraved with 'A.P.' There is no obvious brand mark on the chain. The clasp shows a slight bend from a fall by the riverfront, making it easy to spot if seen. It was a gift from my grandmother and means a lot to me; I really hope someone picked it up and will return it.