Gold pendant necklace with heart charm

I lost my 18-inch 14k gold pendant necklace yesterday around 3pm near Bienville Square on Dauphin Street, right outside Wintzell's Oyster House. The pendant is a small heart about 1 cm tall with a tiny sapphire inset, hanging from a slender 18-inch chain. The back is engraved with my initials 'A.H.' and it shows a few tiny scratches from daily wear. This necklace has sentimental value—it's a gift from my grandmother and I wear it every day. If anyone found it, I'd be grateful to be reunited with it and can meet downtown to pick it up.