Skip to content
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
$24.99
$24.99 - $24.99
Current price $24.99

DMT Burst Spring-Assist Sharpener

DMT
IN STOCK
Order in 3 hours and 47 minutes and we'll ship today!

Spring Assist Folding Sharpener The DMT Burst Spring-Assist Sharpener is a folding sharpener that fits in your pocket for easy carrying. Take your...

View full details
Original price
$19.99
$19.99 - $19.99
Current price $19.99

DMT GlidePro-Z Multi-Function Sharpener

DMT
IN STOCK
Order in 3 hours and 47 minutes and we'll ship today!

Versatile Multi-Function Sharpener The DMT GlidePro-Z is full of options. It has four fixed angle pull-through v-slots: One coarse tungsten and one...

View full details
Original price $21.99
Original price $21.99 - Original price $21.99
Original price $21.99
Current price $17.99
$17.99 - $17.99
Current price $17.99

DMT Magnetic Leather Strop

DMT
IN STOCK
Order in 3 hours and 47 minutes and we'll ship today!

Complete Your Diamond Stones The DMT Magnetic Leather strop is designed specifically to compliment DMT diamond stones. This 8" x 3", smooth leather...

View full details
Original price $43.99
Original price $43.99 - Original price $43.99
Original price $43.99
Current price $35.99
$35.99 - $35.99
Current price $35.99

DMT Diamond Cone Large - Fine

DMT
IN STOCK
Order in 3 hours and 47 minutes and we'll ship today!

This large tapered diamond slip stone is excellent for sharpening gouges, wood turning tools and more! Measures 3/4" to 1-1/4" diameter x 8" half-...

View full details
Original price $244.79
Original price $244.79 - Original price $244.79
Original price $244.79
Current price $179.99
$179.99 - $179.99
Current price $179.99

DMT Dia-Flat Lapping Plate

DMT
IN STOCK
Order in 3 hours and 47 minutes and we'll ship today!

The DMT Dia-Flat is a high quality diamond lapping plate that can handle all your water stone flattening needs. It is a large lapping plate meas...

View full details
Original price $244.79
Original price $244.79 - Original price $244.79
Original price $244.79
Current price $179.99
$179.99 - $179.99
Current price $179.99

DMT Dia-Flat 95 Lapping Plate

DMT
IN STOCK
Order in 3 hours and 47 minutes and we'll ship today!

The DMT Dia-Flat 95 is a high quality diamond lapping plate that can handle all your waterstone flattening needs. The DMT Dia-Flat 95 Micron is ...

View full details
Original price $284.99
Original price $284.99 - Original price $284.99
Original price $284.99
Current price $199.99
$199.99 - $199.99
Current price $199.99

DMT Dia-Flat 95 Plus Lapping Plate

DMT
IN STOCK
Order in 3 hours and 47 minutes and we'll ship today!

The DMT Dia-Flat Plus has grooves for improved performance. Grooves Clear the Waste Flattening water stones creates a lot of waste material, a...

View full details
Original price $159.99
Original price $159.99 - Original price $159.99
Original price $159.99
Current price $119.99
$119.99 - $119.99
Current price $119.99

DMT 8" Dia-Flat 95 Lapping Plate

DMT
IN STOCK
Order in 3 hours and 47 minutes and we'll ship today!

Smaller, More Economical Dia-Flat 95 Lapping Plate Will Flatten Your Valuable Water Stones A Sharpening Supplies Exclusive Sharpening Supplies ...

View full details
Original price $284.99
Original price $284.99 - Original price $284.99
Original price $284.99
Current price $199.99
$199.99 - $199.99
Current price $199.99

DMT Dia-Flat Plus Lapping Plate

DMT
Out of stock

The DMT Dia-Flat Plus has grooves for improved performance. Grooves Clear the Waste Flattening water stones creates a lot of waste material, a...

View full details
Original price $22.99
$22.99
$22.99 - $22.99
Current price $22.99

DMT DiaSpray

DMT
IN STOCK
Order in 3 hours and 47 minutes and we'll ship today!

NEW DMT DiaSpray DMT DiaSpray™ is a great way to achieve the finest edge possible on knives, straight razors and woodworking tools. The .5 micron...

View full details
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
Order in 3 hours and 47 minutes and we'll ship today!

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...

View full details
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 Chainsaw File

DMT
IN STOCK
Order in 3 hours and 47 minutes and we'll ship today!

This Chainsaw file by DMT uses quality monocrystaline diamonds for fast sharpening. Use light pressure and let the diamonds do the work for you. ...

View full details
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
Order in 3 hours and 47 minutes and we'll ship today!

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...

View full details
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
Order in 3 hours and 47 minutes and we'll ship today!

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...

View full details
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
Order in 3 hours and 47 minutes and we'll ship today!

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

View full details
Original price $51.99 - Original price $103.98
Original price $51.99 - Original price $103.98
Original price $51.99
$38.99 - $75.98
$38.99 - $75.98
Current price $38.99

DMT Double-Sided Diafold

DMT
IN STOCK
Order in 3 hours and 47 minutes and we'll ship today!

The DMT Double-Sided Diafold offers an amazing combination of versatility, size, and performance. This combination allows you to tackle a wide ran...

View full details
Original price $55.99
Original price $55.99 - Original price $55.99
Original price $55.99
Current price $45.99
$45.99 - $45.99
Current price $45.99

DMT Diafold Hardcoat™ Double-Sided Sharpener

DMT
IN STOCK
Order in 3 hours and 47 minutes and we'll ship today!

Two stage sharpening with compact convenience. One of DMT’s signature products now outfitted with the proprietary Hardcoat™ surface for extra du...

View full details
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
Order in 3 hours and 47 minutes and we'll ship today!

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

View full details
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
Order in 3 hours and 47 minutes and we'll ship today!

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

View full details
Original price $226.82
Original price $226.82 - Original price $226.82
Original price $226.82
Current price $175.99
$175.99 - $175.99
Current price $175.99

6" DMT Diamond Kitchen Kit

DMT
IN STOCK
Order in 3 hours and 47 minutes and we'll ship today!

This DMT Kitchen Kit was Designed to Sharpen Every Knife in Your Kitchen The 6" Diamond Kitchen Kit includes everything you need to sharpen all o...

View full details
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
Order in 3 hours and 47 minutes and we'll ship today!

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...

View full details
Original price $35.99
Original price $35.99 - Original price $35.99
Original price $35.99
Current price $29.99
$29.99 - $29.99
Current price $29.99

DMT Flexi-Sharp (2" x 3")

DMT
IN STOCK
Order in 3 hours and 47 minutes and we'll ship today!

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...

View full details
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
Order in 3 hours and 47 minutes and we'll ship today!

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

View full details
Original price $89.79
Original price $89.79 - Original price $89.79
Original price $89.79
Current price $69.99
$69.99 - $69.99
Current price $69.99

DMT 4" Diamond Whetstone Deluxe Kit with 4 Grits

DMT
IN STOCK
Order in 3 hours and 47 minutes and we'll ship today!

This kit of DMT Diamond Whetstone and Machinist sharpeners includes a convenient black fabric tool roll for quick and easy access. Each stone meas...

View full details
Original price $48.59
Original price $48.59 - Original price $48.59
Original price $48.59
Current price $39.99
$39.99 - $39.99
Current price $39.99

DMT SLYDR Sharp

DMT
IN STOCK
Order in 3 hours and 47 minutes and we'll ship today!

Sharpen Standard and Serrated Blades with One Tool The easily portable DMT SLYDER features a flat diamond hone for standard blades as well as a ta...

View full details
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
Order in 3 hours and 47 minutes and we'll ship today!

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/...

View full details
Original price $489.96
Original price $489.96 - Original price $489.96
Original price $489.96
Current price $349.99
$349.99 - $349.99
Current price $349.99

DMT 11 1/2" Dia-Sharp Diamond Kit

DMT
IN STOCK
Order in 3 hours and 47 minutes and we'll ship today!

Save off of List Price When You Purchase this Four Grit 11 1/2" Dia-Sharp Kit. Description The Dia-Sharp® line of DMT® diamond stones features ...

View full details
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
Order in 3 hours and 47 minutes and we'll ship today!

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...

View full details
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
Order in 3 hours and 47 minutes and we'll ship today!

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...

View full details
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
IN STOCK
Order in 3 hours and 47 minutes and we'll ship today!

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...

View full details

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