Gold pendant necklace with sapphire heart

I lost my gold pendant necklace yesterday around 3pm near the Houston Galleria on Westheimer Road, outside the main entrance by the fountain. It's a 14k gold, 18-inch chain with a small sapphire heart pendant that catches the light. The back is engraved with the initials 'A.P.' and the clasp is a little stiff, with a tiny scratch on the heart. It was a birthday gift from my grandmother and means a lot to me; I really need it back—if you found it, reply to this listing so we can arrange a pickup.