I don't know if your requirement of 3" is because of the implications of the overall size, but if the overall size is still small enough and 3.25" blade is not too long, then consider the CH Knives CH 3001. Light, compact and only $55 or less, D2 blade, titanium frame lock, and classy looking. My review:
https://www.bladeforums.com/threads/ch-knives-ch3001-a-surprise-picture-added.1497459/
https://www.bladeforums.com/threads/ch-knives-ch3001-a-surprise-picture-added.1497459/
