14k gold ring with emerald, sentimental gift

I lost my 14k yellow gold ring yesterday around 3pm near the downtown library on West Saint Germain Street in St. Cloud, MN. It's a slender 1.7mm band with a bezel-set oval emerald about 4mm by 3mm, and a tiny diamond-like sparkle next to the emerald. On the inside there's a faint engraving 'PK-85' and on the outside a tiny crescent moon. It was a gift from my grandmother and means the world to me; I really need it back. If found, email me at [email protected] to arrange return.