18-inch 14K gold rope necklace with sapphire pendant

Yesterday around 3pm I realized my 18-inch 14K gold rope necklace with a heart pendant and a tiny sapphire bead is missing. I had been walking near Smothers Park on the Owensboro Riverfront, around the fountain area by Frederica Street, and I think it slipped off at some point. The chain is delicate and the heart pendant has an engraving 'AM' on the back. It was a gift from my grandmother and means the world to me, so I’m really hoping to get it back. If you found it, drop me a note here and we can arrange a safe meetup nearby.