Lost delicate silver heart-shaped necklace with 'Forever Yours' engraving in downtown Kirksville.

I lost a delicate silver necklace shaped like a heart while walking around downtown Kirksville last Saturday. It has a small engraving on the back that reads 'Forever Yours.' It slipped off as I took off my sweater, and I’ve retraced my steps several times without luck. I would be so grateful if anyone finds it.