Found ring: silver band with sapphire

I found a ring this afternoon around 2:20pm on Olive Ave in Fresno, near the Tower District coffee spots, tucked between the curb and a storefront mat. It's a sterling silver band, about size 6, with a small oval blue sapphire set in a clean bezel. The finish is slightly brushed, not shiny, and there's a barely legible engraving on the inside: 'M.J. 04/2018'. I picked it up near the crosswalk at Olive and Blackstone after I saw it sitting there on the sidewalk. It seems like it might be sentimental to someone, so I’d really like to get it back to its owner—if this sounds like yours, tell me the engraving and where you think you lost it, and I’ll help reunite you.