Silver pendant necklace with pearl charm

I lost my silver pendant necklace in Manhattan yesterday around 3pm. It's an 18-inch sterling silver chain with a small starfish pendant that features a real pearl at its center, and the clasp shows a tiny nick. The piece isn't flashy, but it means a lot to me because it was a gift from my grandmother and it has sentimental value. I was near Grand Central Terminal's main entrance on 42nd Street and Park Avenue when I think I dropped it, possibly while hurrying to catch the train. If anyone finds it, I’d really appreciate getting it back — I’m hopeful to reunite with it soon.