Gold heart pendant necklace with 14K chain

I lost my gold heart pendant necklace yesterday around 3pm near Winchester Cathedral on High Street in Winchester. It's a delicate 18k gold chain, about 45 cm long, with a small heart-shaped locket at the end. The back of the pendant is engraved with 'M+J', and the clasp is stamped '14K'. The chain has a tiny kink near the clasp from a light fall, but the piece is otherwise in good shape. It was a gift from my grandmother and holds a lot of sentimental value; I'd really appreciate getting it back. If anyone found it, please drop it off near the Market or message me here — thank you.