Silver chain necklace with heart pendant and emerald bead

Hey, I lost my silver chain necklace yesterday around 3pm near the Riverside Market on Main Street in Jackson. It's an 18-inch sterling silver chain with a small heart pendant. The back is engraved with the initials 'MJ' and there’s a tiny emerald bead tucked near the clasp. It was a gift from my grandmother, so it’s really sentimental, and I’d be so relieved to have it back if anyone found it.