Gold-tone necklace with seashell pendant

I lost my gold-tone chain necklace yesterday around 3pm near the Solomons Island Lighthouse on Solomons Island Road in Southern Maryland. It's a slender 18-inch chain from the boutique brand Lumière, with a small oval pendant engraved with a tiny seashell design on the front. The chain shows a bit of wear—the clasp is a bit stiff and one link sits a touch higher than the rest. It was a gift from my grandmother, so it means a lot to me. If you've seen it or picked it up by chance, reach me at [email protected]. Thank you so much.