Gold heart pendant necklace lost near Crabtree Valley Mall yesterday

I lost my gold-tone necklace yesterday around 3pm near the Crabtree Valley Mall entrance on Raleigh's Glenwood Avenue. It's a slim 18-inch chain with a small heart-shaped pendant, gold with a tiny emerald inlay, and a delicate 'M' engraving on the back. The clasp is a standard spring ring and the chain shows a few micro-scratches from wear. This necklace means a lot to me - it was a gift from my grandmother and carries a lot of sentimental value. If anyone happened to find it during the post-lunch crowds around the mall or in the parking lot by the bookstore, I would be incredibly grateful to get it back.