Best Diamond Knife Sharpeners of 2026

The Chef’sChoice Trizor 15XV Professional Electric Knife Sharpener is a 3-stage kitchen knife sharpener that uses diamond abrasives to sharpen and hone edges. It applies an ultra-sharp edge to 15-degree knives and easily converts 20-degree knives to a finer 15-degree edge for easier cutting. The flexible spring guides hold the blade at the ideal angle during use, resulting in longer-lasting, arch-shaped edges down the full length of the blade. It is easy to use and comes with a simple on/off switch.

Kitchellence's 4-in-1 Knife Sharpener & Cut-Resistant Glove is a revolutionary 3-step system that repairs, restores, and polishes blades. With an ergonomic handle, it's easy to use for both right and left-handed users. The included cut-resistant glove ensures safety while you work. Crafted from solid ABS plastic, it's strong, durable and designed to last a lifetime. Shop risk free with a 30-day money back guarantee.

The TUMBLER Sharpener Kit is a must-have for any serious chef. Its diamond-plated sharpening stones provide precise and long-lasting sharpness, ensuring your expensive knives stay cutting like new. The stainless steel helix disc removes burrs effectively, giving your knives a finer edge. This simple yet effective tool allows you to choose between 15 and 20-degree angles for sharpening traditional and specialty blades. With this kit, sharpening your kitchen knives becomes a breeze, saving you time and effort.

The HORL 3 Cruise Sharpener is designed to give you precise control with two sharpening angles: 15° for a fine, razor-sharp edge, and 20° for a tougher, more durable blade. It uses a combination of diamond and stainless steel discs, making it effective on various types of steel, including stainless and rust-resistant knives, so you can sharpen both kitchen and outdoor knives quickly without water. The sharpener’s industrial diamonds are long-lasting and grind efficiently, helping you maintain sharp blades with less effort. Plus, the unique HORL Block Diamonds provide fast and even sharpening, ensuring your knives stay sharp and ready for any cutting task.

The Kota Japan 12 in. Diamond Carbon Steel Professional Knife Sharpener Rod features diamond electoplating for precision blade sharpening, an oval shape for higher sharpening efficiency, and requires less force than most sharpening steel. Its elegant design is a pleasing addition to any kitchen or work area.

The AIERLIAN Knife Sharpener is a handy tool that helps you keep your knives sharp and ready for any kitchen task. It uses strong diamond and ceramic discs to carefully grind and polish your blades, making them last longer and perform better. The sharpener features two magnetic angle supports, so you can easily choose the right sharpening angle for your needs—20 degrees for everyday use or 15 degrees for extra fine cutting. Made with high-quality natural wood and strong magnets, this sharpener keeps your knife steady while sharpening, giving you a safe and efficient experience every time.

The Work Sharp Precision Adjust Elite Knife Sharpener is a great choice for those looking for a reliable and easy to use sharpening system. It comes with seven abrasive grits, adjustable and repeatable sharpening angles, and the ability to sharpen serrated knives. Customers report that it is the best sharpener at this price point, with fast and easy setup, and great results. The only downside is that the base could be a bit heavier.

The Orange Ninja 4-Stage Knife Sharpener is a versatile and easy-to-use kitchen gadget that can sharpen a wide variety of knives. With its 4 slot system, it can straighten, repair, sharpen, and polish kitchen knives, serrated knives, pocket knives, and more. The ergonomic handle makes it easy to use for both right and left-handed people. Made from high-quality ABS plastic, this professional knife sharpener kit is strong, durable and designed to last a lifetime.

Experience professional-level sharpness with the BOGONI Sharpener Kit. Equipped with diamond sharpening discs, it ensures razor-sharp knives for any culinary challenge. The magnetic angle base allows easy adjustment between 15° and 20° angles, catering to different cutting needs. Compatible with various knife types, this user-friendly sharpener suits all skill levels. Packaged in a deluxe gift box, it makes an excellent present. Enjoy a 30-day money-back guarantee and a 3-year warranty.

The HORL2 Walnut Rolling Knife Sharpener is a German-engineered sharpener that provides a precise edge for any type of knife. It features interchangeable grinding discs and a Magnetic Angle Support with a 15° angle for a fine edge and a 20° angle for a robust blade. The industrial diamonds used are the most durable and efficient abrasives, making it perfect for European kitchen knives, hard or soft steel, stainless and rust-resistant steels, and outdoor knives. Customers have praised its ease of use and precision, making it a great choice for those looking for a reliable sharpener.