14k gold ring with emerald and initials

I lost my 14k gold ring with a tiny emerald set in a delicate bezel yesterday around 7pm near the Watertown Town Center, outside the Watertown Books & Café on Main Street. The ring is about a half inch wide, with a subtle milgrain edge, and there's a small engraving inside that reads 'M + L'. It was a gift from my grandmother and means a lot to me, so I’m really hoping it turns up. If anyone found it, I’d be incredibly grateful to get it back—send me a message here on the app and we can arrange a safe meetup near the fountain by the town center.