A stonewash finish on your knife will present a more antique look, with some abrasive patterns, and appearing like it has been used from the first day. A benefit is that it will look the same for quite a while since the abrasive finish will cover the dull parts of the blade. If you want a more polished look, you should consider a scotch bright finish which resembles a more modern, clean and satin appearance.
The finish of a jeweled metal knife is more of a cosmetic feature to the knife and has little to do with its quality or ability. The finish is usually done from the inside, resulting in a beauty to the outside of the knife. A file work finish has an imprint on the knife handle or lock bar placed by the designer or manufacturer, and usually promotes the company’s name.
Similar to stonewash finishing, vibed finishing reflects a slightly worn look with some small abrasions, though usually smaller than those found on the stonewash finish. On the contrary, a polished finish will provide a beautiful shine and is best if the knife is more for show than use.
None of the finishes below will affect the ability or effectiveness of the knife, but simply provide a better looking knife that suits your style. Many types of blade finishes are available that can help avoid unnecessary scratches, discolorations or other markings. Check with your retailer to discuss the blade finishes available to you. View this as purchasing new paint or carpet for your house. It may not lead to much of an increased value, but it will result in a more livable and enjoyable room.
However, what will affect the ability of your knife is grinding. This is an important step in keeping the blade sharp, since as the knife is used the blade will gradually become dull. You can, of course, take the knife to a professional for grinding or sharpen the knife yourself. You may want to consider taking a class focusing on knife grinding specifically or a generally class on caring for your knife. Some classes even teach you to make your own knife. Despite the method you choose, though, remember that grinding is an important step in caring for your knife and keeping the blade sharp.