Why not share a pic of what you consider to be a gentleman's folder then?
Of the knives I own, the closest to what I think of as a "gentleman's knife" is the Buck 500, which I already posted a stolen picture of. Here's my own shot of my own knife.
Buck 500 Duke and Micra by
Pinnah, on Flickr
I sit with concept of a gentleman's knife a bit uncomfortably. There is an element of the use of the term that smacks of Roger Moore-era James Bond and gentleman's clubs in which "classy" means classy like Smokey and Bandit-style Firebird is classy. Which is to say, it's a bit more self-aware glitz that I generally care for. But, perhaps I too closely resemble this commentary, I regularly carry that Buck 500.
IMO, a gentleman's knife should have 4 qualities.
1) It should be a full sized folder or nearly a full sized folder. IMO, it's meant to be intentionally bigger than a small pocket knife and thus impart a sense of rougher tougher capability. Think "gentleman farmer" in all of its negative connotations.
2) It should be a pretty or a bit ornate. Glitzy looking in way that cuff-links or expensive dress shoes are.
3) It should exude a sense of price. A gentleman should drive a Lexus, not a Toyota sort of thing. Gentleman wear expensive watches because they are expensive, not because they keep better time than a Timex or Casio. His knife should match that.
4) IMO, it should be tied to tradition.
Of the knives I own, the (old Script logo) Buck 500 hits all these marks. When I'm dressed up at a wedding a knife needs to make an appearance, this is what will get flashed. It's really a LOT more knife than is needed in a gentlemanly sort of social setting. Much more than a smaller pocket knife like the 501 or 503.
For the dress slacks on which I've modified the right rear pocket for knife carry, I'll sometimes carry this lightweight aluminum and Micarta Buck 110 from Copper & Clad. It's a bit blingy and way, way, way too much knife for gentleman's social setting, which is, I think exactly the point of a gentleman's knife.