Silver necklace with blue sapphire, engraved A.J.

I lost my silver pendant necklace yesterday around 3pm near the Joplin Public Library on Main Street. It's an 18-inch sterling silver chain with a heart-shaped pendant that holds a tiny blue sapphire in the corner, and the back is engraved with the initials A.J. The clasp feels a bit stiff, and I think the spring might be bent, so it could’ve slipped off while I was walking by the library steps or crossing Main Street near the bookstore. It means a lot to me—my mom gave it to me last year, and I’m really hoping someone picked it up and kept it safe. If you found it, drop me a note here.