Lost delicate silver necklace with a small heart pendant near Circle Centre Mall in downtown Indianapolis.

I lost my silver necklace while walking around the downtown area of Indianapolis, possibly near the circle center mall. It's a delicate piece, and it has a small heart pendant attached to it. I remember feeling it snag on my scarf while I was walking, and I think it might have slipped off then. I'm really hoping to get it back; it was a gift from my grandmother and means a lot to me.