Quote Originally Posted by JimmyHAD View Post
I wouldn't be surprised if R&D at Shapton, Naniwa and maybe even Norton might have took a stab at it.
Naniwa already makes diamond waterstones (as in, diamond particles in clay binder much like a traditional Japanese waterstone) but they only go up to 6000 grit and are rather expensive:

Naniwa Diamond Japanese Waterstones

yuzuha, that's some great info! I want to try something like that, I imagine one would use 1/3 part or less of epoxy or it would be sticky.