diamonds make the sharpest knives of all.
I was kind of dissatisfied with mine. I bought the Kyocera two-pack, a chef’s knife and paring knife. I never did get completely used to how light the chef’s knife felt in my hand, and it seemed to dull just as quickly as any other knife. It sits forgotten in the knife block, waiting for me to get off my ass and spend the shipping costs to send it off for sharpening.