Keramikos (formerly from North Vancouver) used to sell ceramic knives. As you can see from the above website screen shot, they are now out of business. This means their “lifetime warranty” has ended.

BeSharp is, AFAIK, the only ceramic knife sharpener in the Lower Mainland. That is because I grind with CBN (Cubic Boron Nitride) wheels, which are even harder than ceramic. Below are pictures of a (Kyocera) ceramic knife that I repaired.