Having made diamond cutting tools, Diamond is brittle. It will definitely flake and fracture. It sounds cooler than using cbn though I guess. In the end if

Having made diamond cutting tools, Diamond is brittle. It will definitely flake and fracture. It sounds cooler than using cbn though I guess. In the end if you want something usable you have to match application to material. There is nothing that is good for everything. I would not use diamond for knives except for fun.