Lost gold charm necklace with heart and lucky clover charms near St. Martin's Church at the Bullring, Birmingham.

I lost my favorite gold charm necklace while shopping at the Bullring in Birmingham. It has meaningful charms on it, including a small heart and a lucky clover. I last remember wearing it while leaving the store near St. Martin's Church. I'm really hoping to get it back, as it was a gift from my grandmother.