10 Best Diamond Knife Sharpener of December 2025

• Coarse and fine diamond stones in one compact sharpener
• Soft grip rubber handle
• Thumb guard
• Sharpening groove for fish hooks and pointed tools
• Micro-Tool sharpening pad

Smith's

• Details: Full length: 4.33-inches, width: 0.88-inch, weight 0.15 lbs
• Coarse Style: Fine (25 micron/600 mesh) restores to a fine edge any knife or tool that is slightly dull. Coarse (45 microns/ 325 mesh) quickly restores a dull edge to cutting condition
• DMT’s double-sided Diamond Whetstone sharpener is reliable and convenient, producing a sharp edge with a few easy strokes. One essential advantage of DMT’s sharpeners is that there is no need to add oil or water to the surface, making it easy to operate in all conditions
• DMT’s double-sided Diamond Whetstone sharpener is most reliable and convenient tool you will ever Purchase within a few strokes and applying light pressure will produce a sharp edge once again. One essential advantage of DMT’s sharpeners surface is that there is no need to add oil or water to the surface, making it easy to operate in all conditions
• DMT a U.S manufactured brand, is committed to fit your specific needs and ensure great initial results. Our brand is focused on providing ongoing education, tutorials, video demonstrations and much more for success with all our products

DMT (Diamond Machining Technology)

• CHEF'SCHOICE - Professional 3-stage sharpener for super sharp edges on your 15 and 20-degree class knives
• DIAMONDS - 100 percent diamond abrasives are used in all three stages. The initial stages sharpen and hone using 100 percent diamond abrasives while the third stage polishes the edge with micron sized diamond abrasives
• KNIVES - Sharpen straight edge and serrated knives as well as sports and pockets knives
• RAZOR SHARP - Chef’sChoice advanced CrissCross sharpening technology delivers an extremely sharp edge by using diamond abrasive wheels which sharpen simultaneously for a superior burr-free edge that cuts effortlessly
• EASY TO USE - Precise bevel angle control creates ultra-sharp 15 and 20-degree edges
• DURABILITY - Separate sharpening and honing/polishing stages for a razor sharp, arch-shaped edge that is stronger and more durable
• FEATURES - a Soft Touch comfortable handle for an easy and secure grip
• Compact and convenient
• When buying, please check whether the product is "Ships from and sold by " just below the product price to make sure you are receiving this product from the manufacturer of Chef'sChoice to ensure your product guarantee is honored.

Chef’sChoice

• ✔EFFICIENT & STURDY: CWOVRS Diamond Sharpening Stone (600#/1200#) specifically designed for High precision grinding and ensure the great effect of knife tool sharpening;
• ✔PROFESSIONAL & ECONOMICAL CHOICE: The coarse grinding can be used to repair serious passivated blade, and the fine grinding can be used to edge, consolidate the blade and oil stone sharpening. No water or expensive oil needed; For best results, use water or honing oil. Plate cover keeps surface clean and ready for next project. Do not put the sharpener in the dishwasher or submerge in water;
• ✔MOLDED PLASTIC NON-SLIP BASE: The equiped exclusive anti-slip base let the knife tool sharpening process more stable and effective; Clear, plastic lid well protecting the stone;
• ✔HIGH QUALITY & DURABILITY: Made of high-grade diamond, our diamond knife sharpening stone is designed for overall durability; Design highlights product texture. More efficiency and durability are less risky than waterstones damage margins. Suitable for kitchen knives, blades, ceramic knives, etc;
• ✔SMALL SIZE & WIDE USE: This diamond sharpening shone with small size and light weight, easy to carry with you. Great for sharpen and hone your knives, scissors, tools, and any other equipments that you need a sharp edge;

CWOVRS

• Crafted from the highest quality materials
• Built for performance and durability
• Made in China

Smith's

• Sharpens everything from very dull or damaged blade to sharp blades in need of quick touchup
• Natural Arkansas and diamond stones; Interrupted surface on diamond stones speeds sharpening
• Larger stones allow for use with small or large knives; Works on a variety of knives and tools
• Easy to rotate and identify stones; Non-skid, plastic base; Trough in base to catch excess lubricant
• Premium honing solution, sharpening instructions and angle guide included

Smith's

• ✔️ DIAMOND ELECTOPLATING: State-of-the-art manufacturing for precision Kitchen, Home or Hunting blade sharpening. Ensures efficient and sharp sharpening of dull knives and tools.
• ✔️ OVAL SHAPE: This knife sharpener rod is designed to ensure higher sharpening efficiency.
• ✔️ ERGONOMIC HANDLE: Designed for aesthetics and practicality.
• ✔️ ELEGANT DESIGN: A pleasing and attractive addition to any kitchen or work area,
• ✔️ UNCONDITIONAL LIFETIME GUARANTEE | 100% TESTED | BUY WITH CONFIDENCE!! Visit KotaJapan to contact our friendly Customer Service in Sunny Arizona, or contact us through your Amazon order screen.

Kota Japan

• CONVERT YOUR KNIVES: Ideal for converting traditional 20-degree factory edges of household knives into high performance Trizor XV 15-degree edges
• DIAMONDS: Advanced stropping stage and 100 percent diamond abrasives for sharpening straight edge and serrated blades. Noise is between 65 dB and 75 dB
• EASY TO USE: Advanced, patented flexible spring guides for automatic adjustment and accurate control of the sharpening angle and feature simple on/off switch
• THREE STAGES: 3-Stage EdgeSelect sharpening system for optimum versatility in providing the perfect edge for each cutting task. Stages 1 and 2 are plated with 100-percent diamond abrasives to sharpen and hone the edge and stage 3 uses a patented flexible abrasive system to polish and help prolong the life of serrated knives
• RAZOR SHARP: The 15 Trizor XV combines the strength and durability of the Trizor edge with the flawless, ultra-sharp 15-degree XV technology. Time Required to sharpen is approximately 1 minute for first time sharpening and resharpening is approximately 10 seconds
• ELECTRIC SHARPENER: Easily apply the astonishingly sharp Trizor XV Edge for ultimate sharpness and effortless cutting
• 3-year limited warranty. Weight: 4.42 pounds
• Measures approximately 10 L x 4.25 W x 4.25 H inches

Chef’sChoice

• COMPLETE KNIFE SHARPENER - field, home or shop use designed for sportsmen who need a complete, compact field sharpening solution. The diamond plates can be easily removed to expose a broad head wrench to speed sharpening in the field. Diamond plates can be attached with the abrasive exposed or flipped over during transport in your gear bag.
• DIAMOND PLATES, CERAMIC RODS, LEATHER STROP, & SHARPENING GUIDES - provide a fast, easy & consistent sharpening solution for knives & camp tools. The ceramic honing rod rotates to expose coarse & fine honing surfaces, as well as a grooved surface for sharpening fish hooks. A second, small ceramic rod is used for sharpening serrations
• CONSISTENT BLADE EDGE ANGLES - purpose built 20° angle guide for sharpening with the diamond plates, & 25° angle guide for honing a strong micro-bevel. Five abrasive steps provide a complete sharpening solution: coarse & fine diamond sharpening plates, coarse & fine ceramic hones, & a leather strop.
• COMPACT & DURABLE - maintain your edge while out hunting, fishing, camping or anywhere you need a sharp edge. All elements are self-contained & require no tools, assembly, or set-up
• PROUD TO BE AN AMERICAN COMPANY - This tool was engineered and assembled by hard working Americans. Work Sharp is part of Darex, a 4th-generation family owned company in Ashland, Oregon. For over 40 years we have been creating industry-leading sharpening tools here in the USA.

Work Sharp

• 4 sharpening angles (17º, 20º, 25º, and 30º)
• Ceramic Benchstone for fine polishing andserrations
• 600 grit medium diamond pull-through slots
• 800 grit ceramic serrated mini benchstone
• Durable metal casing

Lansky