Silver necklace with heart pendant

I lost my silver necklace yesterday around 3pm near the Lexington Public Library on Main Street. It's a sterling silver chain, about 16 inches long, with a small heart pendant that has a tiny ruby accent. The back of the pendant is stamped with the initials 'MH'. This necklace is really sentimental to me — it was a gift from my mom, and I wear it almost every day. If anyone found it, I’d be forever grateful to get it back; I’m really hoping it turns up soon.