Gold-tone necklace with ruby heart charm

I lost my gold-tone pendant necklace yesterday around 3pm near the Alexandria Mall on Masonic Drive in Central Louisiana. It's a Kate Spade gold-tone chain with a ruby heart pendant about 1 inch long and a slightly worn link; the clasp has my initials 'JP' engraved. I probably dropped it while I was grabbing coffee in the mall parking lot and walking toward the cinema; the chain is a bit tarnished but the pendant is intact. It has sentimental value, it's a keepsake from my grandmother, and I would really appreciate getting it back.