14k gold ring with emerald; inner engraving 'A.M.'

I lost my 14k gold ring with a tiny emerald set in a bezel. The ring is about 6mm wide, smooth with a polished finish, and on the inside there's a small engraving 'A.M.' that I added for a personal touch. There is a tiny chip on the emerald's edge if you look closely. I was walking yesterday around 3pm near the Bullock Texas State History Museum on Congress Ave in downtown Austin, after grabbing coffee at a cafe on 6th Street. It means a lot to me—it's my grandmother's ring—and I really need it back.