What is the rarest and most expensive wood that can be made into knife part? I'm not talking about aesthetic of the wood since it's different strokes for different folks. Just the the value and exotic factor.
In my opinion the contender would be
Snakewood
Ironwood Burl
Koa
Rosewood Burl
In my opinion the contender would be
Snakewood
Ironwood Burl
Koa
Rosewood Burl