Lost gold chain necklace with heart pendant engraved 'A.B.' while shopping at the mall in Joplin.

I lost my gold chain necklace with a heart pendant while shopping at the mall in Joplin last weekend. I've had it for years and it holds a lot of sentimental value for me. It’s thin but sturdy, and the pendant is engraved with the initials 'A.B.'. I really hope someone finds it and can return it to me.