Golden hamster with white chest patch

I lost my golden Syrian hamster yesterday around 3pm. He's a tiny guy, about the size of a ping-pong ball, with fluffy golden fur and a distinct white patch on his chest. He wears a tiny blue collar with a silver bell, and his cage has a bright purple wheel and a blue water bottle. I had him with me near the Greensboro Coliseum Complex, around West Gate City Boulevard, but he slipped away while I was packing up after a family visit to Tanger Family Bicentennial Garden. He's the light of our home and really means a lot to us; we are worried sick and would be grateful to get him back.