Silver heart necklace, 925 clasp, lost near Fargo Theatre

I lost my silver heart necklace yesterday around 3pm near the Fargo Theatre on 1st Ave North, downtown Fargo, North Dakota. It's an 18-inch sterling silver box chain with a small heart pendant; the clasp is stamped '925' and the back has the initials 'A.S.' engraved, plus a tiny scratch along the back from a fall earlier this month. It was a gift from my grandmother and means a lot to me, so I'm really hoping someone picked it up. If you found it, drop me a message here on this app.