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FREE SHIPPING ON ORDERS OVER $99 - LIFETIME SHARPENING SUPPORT
FREE SHIPPING ON ORDERS OVER $99!

Diamond Stones

Widest collection of high-quality diamond sharpening stones. From DMT to Nano Hone, our precision-crafted stones deliver exceptional durability and consistent results. Perfect for professionals and enthusiasts who demand razor-sharp edges on even the hardest steels. Shop with confidence backed by lifetime product support.
Original price $43.99
Original price $43.99 - Original price $43.99
Original price $43.99
Current price $34.99
$34.99 - $34.99
Current price $34.99

DMT 6" Dia-Sharp Diamond Stone

DMT
IN STOCK

Description These economical 6" x 2" Dia-Sharp® Diamond Stones allow users to quickly put a razor edge on small and pointed tools. The Dia-Sharp...

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Original price $82.99 - Original price $128.69
Original price $82.99 - Original price $128.69
Original price $82.99
$62.99 - $89.99
$62.99 - $89.99
Current price $62.99

DMT 8" Dia-Sharp Diamond Stone

DMT
IN STOCK

Versatile, flat, continuous surface stones The Dia-Sharp® line of DMT® diamond stones feature a continuous diamond surface embedded on a sturdy n...

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Original price $121.99
Original price $121.99 - Original price $121.99
Original price $121.99
Current price $89.99
$89.99 - $89.99
Current price $89.99

DMT 8" Diamond Whetstone with Wood Case

DMT
IN STOCK

Description The benefits of the diamond stone are many. The diamond is the hardest object known so it can sharpen ceramic or carbide tools wher...

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Original price $88.69
Original price $88.69 - Original price $88.69
Original price $88.69
Current price $75.99
$75.99 - $75.99
Current price $75.99

DMT 8" Diamond Whetstone with Non-Skid Mat

DMT
IN STOCK

DMT 8" Whetstones with Non-Skid Mat The benefits of the diamond stone are many. The diamond is the hardest object known so it can sharpen ceram...

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Original price
$89.99 - $139.99
$89.99 - $139.99
Current price $89.99

DMT 11 1/2" Dia-Sharp Diamond Stone

DMT
IN STOCK

Description The Dia-Sharp® line of DMT® diamond stones feature a continuous diamond surface attached to heavy duty nickel and steel backed surfa...

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Original price $74.99
Original price $74.99 - Original price $74.99
Original price $74.99
Current price $59.99
$59.99 - $59.99
Current price $59.99

DMT 6" Diamond Whetstone with Wood Case

DMT
IN STOCK

Description The benefits of the diamond stone are many. The diamond is the hardest object known so it can sharpen ceramic or carbide tools wher...

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Original price $157.99 - Original price $179.99
Original price $157.99 - Original price $179.99
Original price $157.99
$119.99 - $143.99
$119.99 - $143.99
Current price $119.99

DMT 10" Dia-Sharp Diamond Stone

DMT
IN STOCK

Description The Dia-Sharp® line of DMT® diamond stones feature a continuous diamond surface attached to heavy duty nickel and steel backed surface...

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Original price $59.99
Original price $59.99 - Original price $59.99
Original price $59.99
Current price $46.99
$46.99 - $46.99
Current price $46.99

DMT 6" Diamond Whetstone

DMT
IN STOCK

Description The benefits of the diamond stone are many. The diamond is the hardest object known so it can sharpen ceramic or carbide tools wher...

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Original price $11.99 - Original price $47.96
Original price $11.99 - Original price $47.96
Original price $11.99
$9.49 - $31.99
$9.49 - $31.99
Current price $9.49

DMT Mini Diamond Whetstone

DMT
IN STOCK

Portable Diamond Stone The Mini Diamond 70mm stone is a portable enhancement to any tool kit. Each stone is 2-11/16” x 15/16” x 3/16”, with DMT®...

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Original price $21.79 - Original price $71.79
Original price $21.79 - Original price $71.79
Original price $21.79
$17.99 - $67.99
$17.99 - $67.99
Current price $17.99

4" Mini Diamond Whetstone Ski & Snowboard Stone

DMT
IN STOCK

Ski and Snowboard Edges With just a few strokes these diamond abrasive stones remove burrs created by man-made snow, rocks and ice. Whether you...

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Original price $12.99 - Original price $51.96
Original price $12.99 - Original price $51.96
Original price $12.99
$9.49 - $33.99
$9.49 - $33.99
Current price $9.49

70mm Mini Diamond Whetstone Ski & Snowboard Stone

DMT
IN STOCK

Ski and Snowboard Edges With just a few strokes these diamond abrasive stones remove burrs created by man-made snow, rocks and ice. Whether you a...

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Original price $13.79
Original price $13.79 - Original price $13.79
Original price $13.79
Current price $11.99
$11.99 - $11.99
Current price $11.99

DMT Mini-Sharp

DMT
IN STOCK

The Mini-Sharpeners are so convenient you can even put them on your keychain. Do not let the small size fool you, these sharpeners are the same qu...

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Original price $34.99
Original price $34.99 - Original price $34.99
Original price $34.99
Current price $29.99
$29.99 - $29.99
Current price $29.99

DMT Diamond Flat File

DMT
IN STOCK

The DMT Diamond Flat File works well for sharpening tools. One popular application of this file is to sharpen carbide tools that can't be sharpene...

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Original price $17.69
Original price $17.69 - Original price $17.69
Original price $17.69
Current price $14.99
$14.99 - $14.99
Current price $14.99

DMT Mini-Sharp with Fishhook Groove

DMT
IN STOCK

The Mini-Sharpeners are so convenient you can even put them on your keychain. Do not let the small size fool you, these sharpeners are the same q...

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Original price $37.99
Original price $37.99 - Original price $37.99
Original price $37.99
Current price $28.99
$28.99 - $28.99
Current price $28.99

DMT Diafold Hook & Knife Sharpener

DMT
IN STOCK

The DMT Diafold® Hook & Knife Sharpener with Fishhook Groove is an especially versatile sharpener. Convenient, lightweight and portable, this...

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Original price $35.99 - Original price $107.97
Original price $35.99 - Original price $107.97
Original price $35.99
$27.99 - $77.97
$27.99 - $77.97
Current price $27.99

DMT Diafold Serrated Knife Sharpener

DMT
IN STOCK

Serrated knives, just like traditional blades, can benefit greatly from sharpening. Sharpening serrated knives just requires a different tool. The...

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Original price $30.99 - Original price $123.96
Original price $30.99 - Original price $123.96
Original price $30.99
$23.99 - $85.96
$23.99 - $85.96
Current price $23.99

DMT Single Sided Diafold

DMT
IN STOCK

The Single Sided Diafold® sharpener is a versatile sharpener. This compact diamond sharpening stone allows you to tackle a variety of sharpening j...

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Original price $18.99
Original price $18.99 - Original price $18.99
Original price $18.99
Current price $15.99
$15.99 - $15.99
Current price $15.99

DMT Flexi-Sharp (1" x 2")

DMT
IN STOCK

Flexible steel shim measures .006" thick. Diamond coated on one side. Cut, bend, glue or screw mount to create a custom diamond abrasive tool. Shee...

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Original price $30.59
Original price $30.59 - Original price $30.59
Original price $30.59
Current price $25.99
$25.99 - $25.99
Current price $25.99

DMT 4" Diamond Whetstone with Leather Sheath

DMT
IN STOCK

4" Diamond Whetstone™ sharpener is a convenient pocket model. Comes with a protective leather sheath for easy access to a variety of sharpening, h...

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Original price $21.79 - Original price $99.74
Original price $21.79 - Original price $99.74
Original price $21.79
$17.99 - $95.94
$17.99 - $95.94
Current price $17.99

DMT Aligner Replacement Stones

DMT
IN STOCK

These DMT stones are available in Extra Extra Coarse, Extra Coarse, Coarse, Fine, Extra Fine and Extra Extra Fine. Each stone measures 4-3/8 x 7/...

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Original price $14.99 - Original price $35.97
Original price $14.99 - Original price $35.97
Original price $14.99
$11.99 - $32.37
$11.99 - $32.37
Current price $11.99

DMT Dia-Sharp Diamond Mini-Hone

DMT
IN STOCK

The DMT Mini-Hones® are perfect when you need to sharpen edges that are in tight spaces. The 2 1/2 inches of diamond surface are applied to a thi...

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Original price $17.69 - Original price $43.17
Original price $17.69 - Original price $43.17
Original price $17.69
$14.99 - $40.47
$14.99 - $40.47
Current price $14.99

DMT 4" Dia-Sharp Diamond Stone

DMT
IN STOCK

There are many times when you just need a small sharpener. While not quite a bench stone size, this DMT Dia-Sharp diamond stone is great for small...

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Original price $15.79 - Original price $38.97
Original price $15.79 - Original price $38.97
Original price $15.79
$12.99 - $35.07
$12.99 - $35.07
Current price $12.99

DMT Diamond Card Sized Sharpener

DMT
Out of stock

This diamond sharpener is credit card sized for easy storage. The size is ideal for keeping in your wallet or pocket. Sold individually or as a...

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Questions & Answers

What is the difference between a continuous diamond surface and an interrupted “polka-dot” diamond surface?

On a continuous diamond surface like those on the DMT Dia-Sharp Stones, diamonds cover the entire face of the stone, providing maximum contact between the stone and blade. On an interrupted or “polka-dot” surface like those on the DMT DuoSharp stones, the diamond covered face has small recesses. These recesses help clear away metal filings during sharpening.

Should diamond stones be used wet or dry?

Diamond stones can be used dry or with a small amount of water, which will flush away metal swarf and keep the surface clean during sharpening.

How do I care for and clean my diamond stone?

After each use, rinse the stone with water and if necessary scrub lightly with a stiff brush or old toothbrush to remove metal particles and debris. Allow the stone to air-dry before storing. Avoid dropping the stone, as the diamond surface can be damaged by impact. With proper care, a quality diamond stone will provide consistent performance for many years.

Related Articles & Videos

  • How to Use Diamond Sharpening Stones

    How to Use Diamond Sharpening Stones

    Diamond sharpening stones are popular among woodworkers, knife collectors, and outdoors enthusiasts due to their sharpening speed, ease of use, and excellent results. In this guide, you'll learn everything you need to know to use diamond stones correctly and keep...

    Read now

Diamond sharpening stones offer exceptional speed, durability, and precision, making them a top choice for sharpening knives, woodworking tools, chisels, and more. Unlike traditional stones, diamond plates stay flat over time, require little maintenance, and cut through even the hardest steels with ease.

The ultra-hard diamond abrasives remove material quickly, reducing sharpening time. Diamond stones are a great, low maintenance sharpening option. No soaking required, simply use dry or with a little water for easy sharpening. Diamond stones work on all blade types, ideal for sharpening high-hardness steels, including powder metallurgy steels and carbides.

Not sure which diamond stone is best for you? Our sharpening specialists regularly sharpen with all the diamond stones we stock and are here to help, so feel free to reach out with your questions.

Talk to a Sharpening Specialist

Our Sharpening Specialists have hands-on sharpening experience, so you can get advice on selecting the right sharpener for your needs.

1-800-351-8234
productspecialist@sharpeningsupplies.com
Monday through Friday, 8 a.m. - 4 p.m. CT