Depends on what you consider production.
Currently, my most expensive (retail) is a ZT 0095S90BLK sprint run @$260, though I paid $240 on the exchange, which included ceramic ball bearings (with the original bearing in a Ziploc) as well as a deep carry clip along with the standard.
I also have a Spyderco Manix 2 CTS-XHP, was a sprint run as well. Originally had foliage green G-10 scales, but now has desert ironwood. I have no idea what it cost new, can't remember. I'm sure a lot more on the secondary market (rarity markup, inflation, etc) now.
I have a WE Deacon inbound, $253 retail.
Most of my knives fall somewhere between $150 and $350.
Mine are all users, and will never sell, so value is pretty much irrelevant, other than those that are discontinued or sprints.