Since most athames and knives are made to measure for the user, and have a number of customisable options, I advise emailing me on the links given so that I can make you the blade you want.
Typical options are:
Tang type (half tang, full tang, full width tang)
Quillion (crosspiece) shape/material
Handle material (various woods available, as well as horn and antler)
So now you can see why I can only give a price guide.