14k white gold ring with ruby, engraved inside

I lost my 14k white gold ring with a small ruby yesterday around 3pm near the Duomo in Florence, Piazza del Duomo, by the Baptistery stairs. The ring is slender, about 1.5mm wide, with a tiny ruby set in a simple bezel and an engraving inside reading 'M.C.' There are a couple of light scratches along the outside from daily wear. It meant a lot to me because it was a gift from my grandmother, a keepsake I clung to during travel. If anyone found it, I’d be so grateful to get it back.