Lost silver pendant necklace with a small turquoise stone near Okaloosa / Walton beach.

I lost my favorite silver pendant necklace while walking on the beach near Okaloosa / Walton on September 15th. It has a delicate design with a small turquoise stone in the center. I realized it was gone right after I took a swim, and I've been searching ever since. It means so much to me, so I would really appreciate any help in finding it.