Should be ordered in silver to preserve all of the details, but I know most will want a stainless steel version. Some picture show the stainless steel, the details show up nicely except the bottom part of the logo, I think it still looks great. I've updated the model so the details should appear even better from now on.
So if you want the smooth detailed ring, go for silver! If you want the antique battle worn look go for stainless steel!