10 Best Knife Sharpening Diamond Plates of 2025

Last updated on 19/06/2025

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Ultra Sharp Diamond Sharpening Stone Set - 8 x 3 Coarse/Medium/Extra Fine

Ultra Sharp Diamond Sharpening Stone Set - 8 x 3 Coarse/Medium/Extra Fine

Exceptional value for quality sharpening.
Versatile for all knives and tools.
Includes a convenient stone holder.

Main Highlights

The Best Value We've Ever Seen!
8" x 3" - Extremely fast 300, 600 and 1200 grit diamond sharpening stone set
Quickly sharpens all knives and tools (including ceramic knives)
Stone Holder included (holds all stones from 6-9 inches long)
Each stone is 8" x 3" and weighs 2.2 pounds. Total package weight is 8.5 pounds

SHARPAL 162N Double-sided Diamond Sharpening Stone Whetstone Knife Sharpener |Coarse 325 / Extra Fine 1200 Grit | Storage Case with NonSlip Base & Angle Guide (8 in. x 3 in.)

SHARPAL 162N Double-sided Diamond Sharpening Stone Whetstone Knife Sharpener |Coarse 325 / Extra Fine 1200 Grit | Storage Case with NonSlip Base & Angle Guide (8 in. x 3 in.)

Fast and efficient sharpening.
Dual grit for versatile use.
Superior quality and durability.

Main Highlights

FAST, Durable and Heavy-Duty: Industrial monocrystalline diamonds are electroplated onto a stainless steel base of 0.35 inch thickness. Up to 5 times faster sharpening than oil stone, water stone
DUAL GRIT: Coarse 325 grit (45 micron) for quick edge setting; Extra fine 1200 grit (12 micron) for honing. Sharpen and Hone HARD Material including High Speed Steel, Carbide, Ceramic & Cubic Boron Nitride. Sharpen dry. No messy oil or water needed.
Super FLAT Surface: SHARPAL exclusive MirrorFlat technology guarantees long-lasting even contact with knives or tools, while oil stone and water stone easily wear down with uneven surface
Superior Bonus Pack: Includes storage box with non-slip rubber pad that can be used as a stone base while sharpening; With Sharpening Angle Guide integrated with 4 universal angles-14°, 17°, 20°, 25° and instruction manual inside of packaging
3 YEARS of Commitment and Superior After-Sale Service: SHARPAL, headquartered in California, USA, with branches in Germany and Australia, provides easy and effective sharpening solutions. All products undergo rigorous testing to ensure top-tier performance and durability.

DMT D8C Dia-Sharp Bench Stone, Diamond Knife Sharpener, Coarse (325), Flat Sharpening, Non-Slip Knife Sharpener, 8" x 3" x 0.38"

DMT (Diamond Machining Technology)

DMT D8C Dia-Sharp Bench Stone, Diamond Knife Sharpener, Coarse (325), Flat Sharpening, Non-Slip Knife Sharpener, 8" x 3" x 0.38"

21% OffFree Shipping

Consistent, even sharpening every time.
Fast and easy sharpening process.
Durable construction for reliable service.

Main Highlights

Superior Edge Maintenance: This knife sharpener uses a continuous coarse diamond sharpening stone to repair dull and damaged edges. Its micronized diamond surface sharpens faster and more efficiently than traditional methods for reliable results
Versatile Sharpening Solution: Designed for various edges, this diamond bench stone works well with large blades and fine-pointed tools. The durable, coarse diamond sharpening surface lets you transform a dull edge to cutting condition
Effortless Sharpening Experience: The DMT diamond sharpening stone features 4 non-skid rubber feet for stability. Sharpening dry or with water means no messy oils; achieve consistently sharp results without hassle and enjoy easy maintenance
Exceptional Craftsmanship: Proudly made in the USA, the DMT Dia-Sharp diamond knife sharpener offers superior quality, trusted by professionals. Its design prevents hollowing or grooving, ensuring cutting efficiency for years of consistent use
Compact and User-Friendly: The 8-inch knife sharpening stone is practical for various sharpening tasks without taking up too much space. Engineered for both amateurs and experts, this sharpener is a must-have for every kitchen or workshop setup
Sharpening surface accommodates range of edges from large knives to small pointed tools
Coarse diamond to transform a dull edge
Sharpens knives faster than conventional stones with DMT's monocrystalline diamond surface
No oil is needed--sharpen dry or with water
Durable construction will provide years of consistent performance and reliable service

10pcs Diamond Knife Sharpening Stones sets with aluminum blank diamond plates Kit for RUIXIN PRO RX008 Knife sharpener

10pcs Diamond Knife Sharpening Stones sets with aluminum blank diamond plates Kit for RUIXIN PRO RX008 Knife sharpener

High-quality Sytools material.
Uniform, smoother diamond surface.
Accurate grinding with aluminum base.

Main Highlights

1)These diamond sharpening stones are made of "Sytools" ,Including 10pcs Grit 80# 200# 400# 500# 600# 800# 1000# 1500# 2000# 3000#
2) Better quality than Chinese diamond Sharpening stones which currently on the market,Electroplated diamond particles are more uniform,smoother surface.
3)The first to use the aluminum blank as the support base, the sharpening stone is not bent, the grinding angle is more accurate, and the aluminum blank can be reused (only need to remove the worn diamond pieces), and then use double-sided tape to paste your own sharpening stone
4)Awesome better than the wet stones,replace the wet stones in the ruixin pro rx-008 kitchen knife sharpener system, Apex sharpener , no need to modify.
5)The plates are bonded to the plastic holders with Double-sided tape (more stable than adhesive, not easy to fall off), the diamond particles are bonded to the plates with electro-plating
6)removing nicks or sharpening really hard alloys (like D2)Ceramic knives, These diamond laps work well on the metals which prove difficult to work with natural or aluminum oxide types of abrasives
7)If you don't have the Knife sharpener system ,you can easily set the stones on a damp towel or a rubber mat to hold it and Sharpen your knives,Sharpened a couple of small knives kitchen paring knife with no issue.

Diamond Sharpening Stone, Knife Sharpener Stone Whetstone Honeycomb Surface Plate with Non-slip Base for Pocket Knives Scissors (320/400/600/1000/1500/2000/3000 Grit，with Angle Guide and Leather)

Diamond Sharpening Stone, Knife Sharpener Stone Whetstone Honeycomb Surface Plate with Non-slip Base for Pocket Knives Scissors (320/400/600/1000/1500/2000/3000 Grit，with Angle Guide and Leather)

Versatile for all knife types.
No water needed for sharpening.
Includes various grit levels.

Main Highlights

【Package Contents】The package includes 7 different sizes of diamond pieces + angle guide + leather strop. Diamond sharpening stone including (320/400/600/1000/1500/2000/3000 Grit, with Angle Guide and Leather)
【Product Size】 Length 150mm/5.9 inch, Width 63mm/2.48 inch
【Unique Honeycomb Design and Non-slip base】:The sharpening stone set with unique honeycomb design ensures that the dust generated during the grinding process will not affect the sharpening. The diamond sharpening stone has a non-slip base to ensure that it will not slip during use and e asily tackle both coarse and fine sharpening jobs.
【Use for most cutting tools and cutter knife edges】Widely used for grinding of household knives, professional chef knives, outdoor knives, engraving knives and other knives.More efficiency and durability are less risky than waterstones damage margins. not need water during the sharpening process
【Service Guarantee】 If you have any questions or concerns about the use of the product, please contact us and we will reply to you as soon as possible

S SATC Diamond Sharpening Stone 2 Side Grit 400/1000 Diamond Plate Honing Stone 8-inch Hone Sharpener White

S SATC Diamond Sharpening Stone 2 Side Grit 400/1000 Diamond Plate Honing Stone 8-inch Hone Sharpener White

16% OffFree Shipping

Convenient and durable sharpening solution.
Double-sided design for versatility.
Precision technology ensures lasting quality.

Main Highlights

Convenience & Durability:Diamond sharpening plates are far more durable and easily to maintain than whetstones because they won't be cratered and do not need to be flattened
Double-sided Grit Design:Easily tackle both coarse and fine sharpening jobs with just one sharpening stone
Cutting-edge technology:Steel plates are precisely machined and electroplated with monocrystalline diamonds, which gives them a far longer lifespan than its counterparts
Precision & quality control:We keep our quality control standard high only to offer our customers the fastest and smoothest sharpening experience
Universal Application:Diamond sharpeners can be applied to honing a wide range of straight edged tools such as chisels and planer blades

Diamond Sharpening Stone, 5 Pcs Knife Sharpening Stone with Extra Fine/Coarse Plate and Non-slip Base, 400/600/800/1000/1200 Grit

Diamond Sharpening Stone, 5 Pcs Knife Sharpening Stone with Extra Fine/Coarse Plate and Non-slip Base, 400/600/800/1000/1200 Grit

Unique design minimizes sharpening dust.
Durable diamond material ensures longevity.
Versatile for various tools and knives.

Main Highlights

Unique Honeycomb Design:The sharpening stone set with unique honeycomb design ensures that the dust generated during the grinding process will not affect the sharpening. The diamond sharpening stone has a non-slip base to ensure that it will not slip during use and easily tackle both coarse and fine sharpening jobs.
Reliable Material:The knife sharpening stone is made of diamond material, with honeycomb surface is safe and reliable, not easy to break or fade, with fine resistance to abrasion and corrosion.Due to the high hardness of the material and the low loss during use, our sharpening stone kit can be used for a long time.
Easy to Operate：You just need to place the knife on the sharpening stone and move it back and forth several times while maintaining an angle of about 15°. You can always adding water or honing oil on it while sharpening, which make the lubricating effect of grinding will be great.Use with no pressure
Universal Application：The diamond sharpening stone is very suitable for honing household kitchen knives, wood chisels, jade, seals, tool steels, seal cutting tools, ceramic knives, and chamfering of glass tiles.Whether it is household props or outdoor tools, you can use our whetstones to sharpen it and make it easier to use.
Package Include:You will receive 5 pieces of diamond sharpening stones in different grits, including 400 grit, 600 grit, 800 grit, 1000 grit and 1200 grit.The size of the sharpening stone is about 15 cm/ 5.91 inches in length, 6.3 cm/ 2.48 inches in width, and 0.1 cm/ 0.04 inches in height.Lightweight, small and practical.

Jewboer 5 Pieces Diamond Sharpening Stone Set,Diamond Lapping Plate Coarse/Medium/Fine Grit Sharpener,400/600/800/1000/1200 Grit

Jewboer 5 Pieces Diamond Sharpening Stone Set,Diamond Lapping Plate Coarse/Medium/Fine Grit Sharpener,400/600/800/1000/1200 Grit

37% OffFree Shipping

Efficient diamond coating technology.
Versatile for various materials.
Durable design for long use.

Main Highlights

5 pieces sharpening plates,made of durable diamond material.
Thin grinding polishing diamond square knife tool sharpening stone whetstone 400/600/800/1000/1200 grit.
Diamond coated material is more efficient than normal whetstone.
Use for:grinding stone,jade,seal carving knife,wood crafts, metal grinder workpiece etc.
Add a little water when grinding,help to prolong Diamond Sharpening Stone life.Wipe the surface of the water stains after using to avoid rust.

Diamond Sharpening Stone, 5 Pcs Knife Sharpening Stone for Kitchen Sharpening, Diamond Lapping Plate Coarse/Medium/Fine Grit Sharpener, 320/600/1000/2000/3000 Grit

Diamond Sharpening Stone, 5 Pcs Knife Sharpening Stone for Kitchen Sharpening, Diamond Lapping Plate Coarse/Medium/Fine Grit Sharpener, 320/600/1000/2000/3000 Grit

Durable diamond material ensures longevity.
Unique design reduces grinding dust.
Non-slip base for safe usage.

Main Highlights

5 Diamond Sharpening Plate: 5 pieces grinding stones with anti slip base,made of durable diamond material. They respectively are #320 #600 #1000 #2000 #3000
Unique Design: unique honeycomb design ensures that the dust generated during the grinding process will not affect the sharpening. The diamond sharpening stone has a non-slip base to ensure that it will not slip
Diamond Material: The diamond sharpening knife stone is made from diamond, which turns out to be tougher, stronger and more durable than those made out of stone material.
Easy to Use: Choose the right angle,You just need to place the knife on the sharpening stone and move it back and forth several times.
After sales guarantee: If you have any questions about the use of the product, please contact us and we will try our best to solve the problem for you as soon as possible

Diamond Sharpening Plate Set 4 PCS Grit 240/400/600/1000 Knife Sharpener Stone,Knife Sharpening Stone for Kitchen Knife Sharpener Professional Sharpening System-stone

Diamond Sharpening Plate Set 4 PCS Grit 240/400/600/1000 Knife Sharpener Stone,Knife Sharpening Stone for Kitchen Knife Sharpener Professional Sharpening System-stone

50% OffFree Shipping

Main Highlights

4 DIFFERENT SHARPENING PLATES: There are four different diamond sharpening plates in total for knife sharpener. They respectively are #240 #400 #600 #1000, so you can choose to use them to sharpen the knife in accordance with their different speed and smoothness.
DIAMOND MATERIAL: The diamond sharpening plate is made from diamond, which turns out to be tougher, stronger and more durable than those made out of stone material. The powder does not fall off easily while sharpening a knife.
USER-FRIENDLY DESIGN: One of the most outstanding features of this diamond sharpening plate is that there is no need to use water when you are sharpening the knife. Compared with the sharpening stone, this sharpening plate is proved to be working more efficiently.
MORE ACCURATE & EFFECTIVE: This type of sharpening plate can not only be used alone but more importantly, you can use it together with the knife sharpener. In this way, it can make the effect of sharpening a knife more precise and efficient.
MULTIPRUPOSE USE: There is no doubt that this diamond sharpening plate has a wide range of application and it can be widely used in all kinds of cutting tools, such as tools grinding, scissors, chisels, plane irons and kitchen knives and more.