Naniwa Diamond Sharpening Stone | #3000 Grit

Naniwa brand Diamond compound abrasive stone for knife sharpening. 

  • #3000 for polishing and bevel upkeep
  • Dimensions:  210mm x 75mm x 16mm.
  • With Nagura stone for cleaning and abrading stone 

Naniwa diamond whetstones are incredibly hard, flat sharpening stones with diamond abrasives able to cut even the hardest modern blades. They are versatile, low maintenance, and have the ability to produce a mirror finish in minimal time. Each stone comes with a nagura stone for re-dressing the surface. Easy to use, simply soak or spray with water before use.

We stock a range of Naniwa products for knife sharpening. They have become the gold standard for excellent quality abrasive stones designed for professional chefs. If you love Japanese steel, choosing Naniwa stones is your best bet for sharper edges.

We produce durable, high-quality knives and products for both culinary and utility use.

We stand behind the craftsmanship of our knives with this limited warranty.

All Koi Knives products are warranted to be free from defects in materials and workmanship during the period of one year from the original date of purchase by the end user. 

Should a manufacturing defect arise within the warranty period, We will repair
or replace the knife at our discretion without charge.

Please note: This warranty does not cover damage resulting from improper use or care, accidents, modification, commercial use, neglect, or regular wear and tear over time. We are not responsible for knives that have been damaged from misuse such as dropping, improper cleaning methods (like putting the knife through a dishwasher), or excessive force.

If you have any warranty questions or queries please feel free to contact us.

Please note: We recommend washing blades by hand using warm soapy water and drying them straight away or in any way that does not have water pooling on the blade.

Handles can be oiled using a natural oil such as a Camelia oil.

We ship orders on Tuesdays and Thursdays.

Orders within Australia should arrive within a week.

International orders can take between 1-4 weeks to arrive.

Tracking information will be sent to you when your order has been sent.

Express shipping: If you are wanting your order in a hurry please add a note in with your order and we can upgrade you to express shipping for free.

*Only for Australian orders

International Orders: Please note there may be additional taxes and duty applied by customs in your country.

Unfortunately we can't tell you how much this would be as each country is different.

A handy guide to use is https://www.simplyduty.com/import-calculator/

"Stay sharp and have a knife day"