18k gold ring with emerald centerpiece, engraved inside

I lost my 18k yellow gold ring yesterday around 3pm. It has an oval emerald center stone, flanked by tiny diamonds on a slim, slightly curved band. There’s a small engraving on the inside: 'L.H.' and I can see a faint bend from a kitchen fall a few months back. I was near the Springfield Central Library on Main Street, by the fountain and the bus stop, when I realized it was missing. It means a lot to me—my grandmother gave it to me—and I really need it back. If anyone found it, I’d really appreciate getting it back.