Silver heart necklace lost near Decatur Square

I lost my silver pendant necklace yesterday around 3pm near the Decatur Square on Ponce de Leon Ave. It's a delicate 18-inch sterling silver chain with a small heart pendant; the back is engraved with 'Mom' and there's a tiny sapphire stone set in the heart. It was a gift from my grandmother and has huge sentimental value, so I'm really hoping to find it. If anyone picked it up, please reach out—I'd be grateful to get it back, and I can describe more identifying details or meet downtown.