Don't feel compelled to carry a sgian dubh in the first place. Most only serve the purpose of decoration. Unless yours is a functional, well-made blade they tend to be more aggravation than they're worth, particularly for daywear.

Given that, I think that the knife shown looks like an interestingly carved mass-produced boot knife, but not like a sgian dubh. Sgian don't.

I have a mass-produced, yet nice, sgian dubh I'd be willing to donate to your cause. If you're interested, PM.

David