11 Best Diamond Sharpening Stones 2023

With time, your knives and other cutting tools may lose their edges, and we both know that using a blunt tool is not only risky but will also waste your time.

However, you can re-reset the edges of your tools using the high-quality diamond sharpening stones that we have reviewed below.

The sharpening stones on this review list can assist you when honing kitchen knives, planer blades, scissors, gouges, and other sharp tools.

Since they use monocrystalline diamond as their abrasive medium, the contact surfaces won’t wear out prematurely, meaning that the stones will serve you for a very long time.

Plus, most of the diamond sharpening stones are double-grit and will allow you to sharpen your tools to a razor-sharp finish.

11 Best Diamond Sharpening Stones

1. SHARPAL 156N Diamond Sharpening Stone

SHARPAL 156N Diamond Sharpening Stone

The dual-grit diamond sharpening stone from Sharpal can be an excellent addition to any workshop or kitchen since it can assist you greatly when honing blades and other tools.

Made of high-grade monocrystalline diamonds, this may just be what you need to keep the edges of your cutting tools in good shape.

This diamond stone is easy to work with, so it won’t give you a hard time when sharpening your tools.

It features an extra-fine 1,200-grit side and a coarse 325-grit side. The former is ideal for honing blades, while the latter can assist you when re-setting damaged edges.

When you buy this diamond sharpening stone, you will also get an angle pyramid, which will guide you on how best you can set the cutting edge to get maximum results.

Furthermore, the pyramid provides you with up to four angle guides that you can use when sharpening different types of tools. As such, you can set the tool at 14°, 17°, 20°, or 25°.

All the angle options will provide you with exceptional results, provided that the blade is well aligned with the pyramid as you make the sharpening passes.

This tool comes with a durable holder, which has a rubberized base to increase traction. As a result, the stone will stay in place throughout the sharpening process, allowing you to work faster.

Thanks to its MirrorFlat technology, the stone will always make even contact with the blade, so the cutting edges will be sharpened uniformly.

According to the manufacturer, this diamond sharpening stone can sharpen tools up to five times faster compared to conventional oil stones.

In addition to this, it is extremely durable, so you won’t have to buy new sharpeners every now and then.


  • Innovatively designed
  • Heavy-duty
  • Suitable for honing hard materials


  • Does not offer medium grit
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2. DMT WM8EF-WB DuoSharp Plus Bench Stone

DMT WM8EF-WB DuoSharp Plus Bench Stone

Diamond Machining Technology is a brand that has earned a good reputation when it comes to making high-quality diamond sharpening stones.

With that said, the DuoSharp Plus is one of the models that you can fully count on if you are looking to get razor-sharp cutting edges.

The stone is two-sided and features a fine and extra-fine sharpening zone that you can use depending on your needs.

Besides, you won’t have to use oil when sharpening your tools with this stone. However, you can use water when sharpening tools that may require you to work with the stone for an extended duration.

This tool is designed with premium-quality diamond abrasives, which will allow you to sharpen even the hardest materials. The sharpening area features the manufacturer’s unique polka dot design.

And since the dots are recessed, the water will stay on the sharpening stone for a longer period, allowing you to work continuously without wetting the stone multiple times.

This stone enables users to sharpen tools faster, so you will spend more time using your blades rather than sharpening them.

Additionally, the surface of this sharpening stone is precision flat, so it won’t gouge the edges of your blades.

If used correctly, you will be able to sharpen, refine, and polish sharp edges in a matter of minutes.

The stone ships with a sturdily built base that will provide you with maximum stability when tackling sharpening tasks.

More on the base, it is fitted with a handle that you can use when moving the diamond stone over the surface that you are sharpening.


  • Delivers consistent performance
  • Long-lasting
  • Versatile


  • Wears out with time
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3. Kalolary Double-Sided Diamond Sharpening Stone

Kalolary Double-Sided Diamond Sharpening Stone

The diamond sharpening stone by Kalolary is also another amazing product that you can consider adding to your tool maintenance kit.

This stone provides you with 400-grit and 1,000-grit sharpening surfaces that can help you shape the edges of your tools according to your sharpening needs.

Moreover, you can sharpen just about any tool with this stone, so it won’t matter whether you are dealing with kitchen knives, scissors, woodworking tools, or any other sharp tool, this diamond stone will ensure the edges are sharpened to your preference.

This stone uses diamond as its sharpening media, so you can rest assured that it will provide you with long-term service.

To make it even better, the diamond grits can grind edges faster compared to most abrasives on the market.

More to this, the stone will sharpen all your tools uniformly, thus providing you with an ultra-sharp edge that is equally fine.

The kit is inclusive of a transparent cover, which protects the stone from dust and other contaminants when it is in storage.

But, that is not all; there is also a non-slip base, which prevents unnecessary slippage when the stone is in use.

This will greatly increase your performance and will also lower your chances of getting cut when honing sharp tools.

You can use this stone with or without a lubricant, so it will be up to you to decide how you want to go about the sharpening process.


  • Dual-grit design
  • Multi-purpose
  • Efficient


  • May require breaking-in
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4. Trend DWS/CP8/FC Classic Pro Double-Sided Diamond Sharpening Stone

Trend DWS/CP8/FC Classic Pro Double-Sided Diamond Sharpening Stone

Trend is proud to present you with a double-sided diamond sharpening blade that you can use on a wide range of tools.

This equipment is available in two different sizes, so you can go for the option that matches your needs.

The surface of this stone is very flat, meaning that all edges will make uniform contact with the abrasive zone, allowing for fast and efficient sharpening of tools.

Each side of the stone is marked with diamond grades for identification purposes. As such, this will lower the probability of making errors when sharpening edges that may require you to use a specific grit.

The 300-grit side can come in handy when refining damaged edges, while the 1,000-grit can prove helpful when honing fine edges.

Plus, the coarse side has a unique clearance, thus allowing it to deliver cleaner cuts when sharpening pointed tools.

This unique feature also prevents snagging, so the tool will glide smoothly along the abrasive surface.

Also, the stone is very effective when it comes to sharpening tools in general, but it will provide you with even better results when flattening planer blades, chisels, and other tools that are used in the woodworking industry.


  • Quality construction
  • Easy to use
  • Strong substrate material


  • Questionable quality
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5. Ultra Sharp Diamond Sharpening Stone Set

Ultra Sharp Diamond Sharpening Stone Set

This set provides you with three diamond stones that you can rely on when sharpening knives and other sharp tools.

The stones are made of micronized monocrystalline diamonds and are also electroplated to minimize wear and tear when sharpening tools.

Each stone has a different grit rating, so you can choose the sharpening tool that matches the task description.

These stones have precision-designed surfaces that will allow you to hone your tools uniformly without damaging the edges.

You can use medium grit, fine grit, or extra-fine stone when working with different types of tools.

Furthermore, the abrasive surfaces can grind stainless steel, carbon steel, ceramic, and other materials used in making cutting tools.

The heavy-duty stone holder will make your work easier when sharpening tools because it prevents the stones from moving as you glide the tool across the surface of the sharpener.

More to this, the holder is fully adjustable, so you can customize it depending on the size of the stone that you are using.

This set will enable you to sharpen your tools within the shortest time possible, thereby reducing your downtime.


  • Well made
  • Fast honing
  • High quality


  • The stones will lose their abrasiveness over time
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6. S SATC Diamond Sharpening Stone

S SATC Diamond Sharpening Stone

Featuring 400-grit and 1,000-grit sides, this stone sharpener will allow you to hone your cutting tools professionally without deforming the edges.

This stone can sharpen all straight-edge tools, so you can use it when honing knives, flat chisels, axes, scissors, planer blades, just to mention but a few.

Both sides won’t wear out prematurely, and neither will they get cratered after continuous usage.

Also, the monocrystalline diamond grits used in making this sharpening stone are of superior quality and will provide you with a frustration-free sharpening experience.

The coarse side can be used for initial grinding purposes, while the other side of the stone will help you polish the cutting edge to a fine finish.

Additionally, the surfaces are very abrasive, so you won’t have to apply a lot of pressure when shaping the edges of your tool.

This sharpener requires minimal maintenance and is also easy to clean. Once you are done with work, you can wash off the filings with water. Because the substrate is made of steel, ensure that you dry the tool properly after each use to limit rust.

The surface is electroplated, so the abrasive medium won’t come off even when the stone is put to heavy-duty use.


  • User-friendly design
  • The stone is double-sided
  • Designed using cutting-edge technology


  • Requires you to use water or lapping oil
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7. Adust Diamond Sharpening Stone

Adust Diamond Sharpening Stone

The diamond stone sharpener from Adust is a high-performance tool that will allow you to sharpen dull edges with minimal strain.

Like the diamond sharpening stone just before it, this tool is double-sided and is innovatively designed to minimize the time that you spend sharpening blades.

The included base elevates the stone above the workbench and also prevents it from moving about as you sharpen your tools.

Moreover, the holder is compatible with different sizes of stones, and all you have to do is to adjust it.

Plus, the holder is made of high-quality rubber and also features a stainless steel frame that provides users with long-lasting service.

All sides of this sharpener are electroplated to prolong the stone’s durability. And unlike contemporary sharpening stones that wear out prematurely, this tool will retain its uniform shape for a very long period.

The micronized diamond particles will increase your sharpening speed without causing any damage to the tools that you are honing.

Thanks to its two-in-one design, you can re-set damaged edges and, at the same time, hone fine edges while using the same tool.

The fact that each side is marked makes it even more convenient because you won’t have to guess when it comes to choosing the right grit for the job.


  • The base is non-marring
  • Ideal for kitchens and workshops
  • Sharpens fast


  • You have to break it in
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8. Smith’s Diamond Tri-Hone Bench Stone

Smiths Diamond Tri-Hone Bench Stone

Smith’s tri-hone stone has all the features that you may look for is a diamond sharpener stone.

For starters, the stones are firmly mounted to a triangular frame that will provide you with the stability that you need when sharpening both soft and hard materials.

To add to this, the frame is fitted with handles on each side to allow for easy stone rotation. As such, users won’t experience any problem when switching from one sharpening stone to another.

Also, the handles are ridged, so the stones won’t slip as you make the required changes. This tool provides you with a 325 coarse grit stone, 750-grit stone, and an Arkansas stone with a 1,000-1,200-grit rating.

The fine and coarse grit sharpening stones are innovatively designed with a unique overlapping feature, which allows the surface of the stones to remain clean throughout the sharpening process.

This not only increases the sharpening speed but also allows the stones to deliver clean and precise cuts when honing edges.

The Arkansas stone, on the other hand, can polish the cutting edges to an ultra-sharp finish.

You can use all three stones or just one depending on the condition of the tool that you are sharpening.

When sharpening tools with damaged edges, you should consider starting with the rough stones since they are well suited for quick edge setting.

After you are done, you can give your blade the final touch-up using the natural Arkansas stone.


  • Has a micro-tool sharpener
  • Comes with a strong base
  • Non-slip


  • The stones must be lubricated before use
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9. DMD Double-Sided Diamond Sharpening Stone

DMD Double-Sided Diamond Sharpening Stone

The double-sided sharpener from DMD features 400-grit and 1,200-grit sharpening zones that you can use in different scenarios.

Besides, each side is labeled for your convenience, so you won’t waste a lot of time when choosing grits.

Both the coarse and fine surfaces are good at what they do, meaning that all your tools will come out with razor-sharp edges.

The substrate material is aluminum-built, so the tool is not as heavy compared to most sharpening stones.

Plus, the stone has a reliable drainage system, which directs water away from the abrasive surface.

This increases the surface area for maximum contact, allowing the stone to hone cutting edges with ease.

In addition to this, the stone is flat, so all parts of your tool will be sharpened evenly. The diamond plates are firmly attached to the base material, so you won’t have to worry about them detaching even when working in wet conditions.

This diamond sharpening stone is professionally designed with every user’s needs in mind. Furthermore, you don’t require any special skills to use this sharpening stone.


  • Ultra-durable
  • The contact surface is easy to clean
  • Good quality


  • The stone holder is sold separately
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10. Suteck Diamond Sharpening Stone

Suteck Diamond Sharpening Stone

This sharpener comes with a durable holder that will give you optimum control when sharpening different types of tools.

Additionally, it has a coarse and fine side, both of which can assist you when sharpening severely damaged or smooth edges.

The holder is adjustable, so you can increase or decrease its length according to the size of the sharpening stone.

More to this, the base is weighted and is also covered in rubber to limit slippage. The contact surface has diamond-pattern grooves, which collect the filings as you sharpen your tool.

That way, the abrasive medium will be able to grind the material that you are sharpening with exact precision since the contact zone will always be free of filings.

The monocrystalline diamonds are electroplated onto the base material to prolong the stone’s service life.

You won’t experience any difficulty using this sharpening stone because the manufacturer has provided you with easy-to-read instructions that will guide you through the sharpening process.

This stone is versatile and can be used when sharpening art knives, chisels, scissors, gouges, axes, etc. The holder and the stone are easy to maintain, so you won’t need additional tools to keep them in good shape.


  • Sturdily built
  • Hardwearing
  • Delivers excellent performance


  • The 400-grit side may be rougher than it should be during first use
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11. SHARPHOS Double Sided Diamond Sharpening Stone

SHARPHOS Double Sided Diamond Sharpening Stone

The 600/1200 grit diamond sharpening tool by Sharphos is made of premium quality monocrystalline diamond grits, which will provide you with commendable service.

This kit comes with an easy-to-use angle guide that will enable you to shape the edges of your knives to the preferred level.

To add to this, the guide is fitted with ceramic attachments, which prevent tools from scratching its surface.

The most impressive thing about this tool is that it can sharpen tools even when it’s dry. This means that you won’t have to lubricate the contact surface with water or lapping oil.

It will allow the tool that you are sharpening to make smooth travels as you glide the edge over the abrasive medium.

To prolong its durability, the manufacturer has electroplated the diamonds onto the substrate material to prevent excessive wear.

Since the stone is double-sided, you can swap grits by simply flipping it over. There is a non-slip base in the package, which will ensure the stone stays in place when you are working.

Through this, you’ll be able to hone faster without cutting your fingers. The base also increases contact between the blade and the stone, thereby maximizing the sharpening effect.


  • Comes with a user manual
  • High-grade
  • Designed to last


  • The grits will wear out eventually
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Frequently Asked Questions

Why should I use a diamond sharpening stone?

Diamond sharpening stones can hone blades and other tools faster compared to contemporary sharpening plates.

In addition to this, diamond stones make even contact with all parts of the blade, so the contact surface will wear out uniformly, meaning that the stone won’t be cratered.

The other reason why you should consider using a diamond sharpening stone is that they are exceptionally tough and lasts longer compared to regular sharpening stones.

Can I use a diamond sharpening stone without applying lubricants?

Diamond sharpeners are designed differently, so some may require you to use lubricants while others can sharpen tools minus lubricants or water.

As such, you should check the user manual to get an in-depth understanding of how best you can use the stone to get the required results.

How long do diamond sharpening stones last?

Most of these stones can last up to a lifetime, but this may vary depending on the type of materials that you sharpen and the frequency of use.

If you use the stone to sharpen extremely tough materials, the grits will wear out faster and vice versa.

Sharpening stones that are used regularly are also more likely to lose their abrasiveness faster compared to those that are rarely used.

Final Verdict

The diamond sharpening stones that we have hand-picked for you are not only durable but also reliable. They’ll allow you to hone your knives without breaking a sweat.

To add to this, they are designed with your safety in mind, so you won’t cut yourself during the sharpening process provide that you hold the tool that you are honing correctly.

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