Silver ring with blue stone, found in Northampton

I found a silver ring today around 4:20pm while walking along Main Street in Northampton, right outside the Academy of Music. It’s a slim sterling silver band, about 4-5mm wide, with an oval lapis lazuli stone bezel-set. The inside bears a small engraving that reads 'AP-92' and there’s a tiny nick along the outer edge near the setting. Overall it’s in good condition with only minor surface scratches. I know how meaningful a ring can be, so I’d love to get it back to its owner. If this sounds like yours, tell me the engraving detail or the stone, and we can arrange a safe hand-off in downtown Northampton.