Silver heart pendant necklace with sapphire

I lost my silver pendant necklace yesterday around 3pm near the Walmart on NW 2nd Street in Lawton. It's an 18-inch sterling silver chain with a small heart-shaped pendant set with a tiny sapphire. The back has a faint scratch from a fall last year, and the chain shows light wear from daily use. It was a gift from my grandmother, so it has sentimental value and I’m really hoping someone picked it up and could return it. If you found it, email me at [email protected].