Gold-tone necklace with sapphire heart pendant

I lost my gold-tone necklace yesterday around 3pm near the Camelback Resort lobby on Route 611 in the Poconos. It's a slim 18-inch chain with a small sapphire heart pendant about 8 mm across. The clasp has my initials 'NK' engraved on the back, and the pendant has a tiny scratch on the surface. It was a gift from my grandmother, and it feels emotional to lose it; I wear it every day and it means a lot to me. If anyone found it, I'd really appreciate getting it back; I can meet at the Camelback entrance or arrange a pickup.