Cooks want their knives to be sharp and therefore, they require a good whetstone or sharpening stone. However as these can be dangerous to use if care is not taken, you need to choose a sharpening stone carefully.
There are many types of sharpening stones in the market. Out of these, diamond sharpening stones are considered the best whetstones as they can cut fast. When looking for the best sharpening stones, you can consider factors like the grit size, deck size, minimal maintenance and price. The higher the grit, finer the stone is considered. Similarly the deck size should be large enough so that you are able to sharpen the knife easily.
We have researched the market and have compiled a list of the best diamond sharpening stones. These stones have been reviewed for their grit size, deck size, ease of use, maintenance and price. You can check out the list to find the best of the whetstones for your use. You can choose two or more of these stones for sharpening different types of knives.
Scored 4.1/5.0 – From 206 Customer Reviews
Priced From $5.95
- New Diamond Honing – two sided – Fine (600 grit), Coarse (400 grit) combination block
- These hard, sharp, tough, stones are available in various grits
- Recognized for the clean, sharp surfaces
- Produce on tools,dies,blades,molds and any other metal piece requiring sharpening or smoothing
- Measures approximately 6″ x 2″ (152 x 51 mm).
While ceramic knives start out sharp, even they will dull after long use as your favorite knife.Knives have a flat blank profile, are hollow ground at a shallow angle to create the area which can be sharpened (typically 1/4 to 1/3 of the blade height can be sharpened allowing for many years of use, due to this hollow grind).The actual sharp edge is at the bottom of the hollow ground area, and is at a much steeper angle to the blades face. try to duplicate the angle by making light strokes along the blade and noticing if you are only “shining” the top or bottom of the previously sharpened zone. Tilt the hone and try again until you match the angle that was there, and are either shining the center of it, or both the top and bottom at the same time. Continue until the full width of the original zone is shiny.for scissors, rub the inner flat sides of the blades that rub togethr as the scissors close, to remove nicks and burrs. again, shine the full width of this side of the blade equally. If one part is shining first, adjust the angle of the hone.to finish the scissors, find the angle (not straight across) that the original top of the blade had, and hone the top of each blade at that angle so that the whole top is be coming shiny at the same time.
Ansen Tools Grit Sharp AS-409 6-Inch Double-Sided Extra Wide Diamond Whetstone Sharpener Coarse/Fine in Compact Case with Non-Skid Rubber Base
Scored 4.3/5.0 – From 69 Customer Reviews
Priced From $31.98
- Double-sided (Coarse 360 grit – Fine 600 grit) each with monocrystalline advanced technology
- Coarse surface (360 grit) quickly restores a dull edge and the fine diamond surface (600 grit) will bring back a razor sharp edge
- Sharpens the toughest materials like tool steel, carbide and ceramics
- Ideal for machine tools, cutlery knives, woodworking tools
- The sharpener sits in a compact case with a non-skid rubber base
I purchased this sharpener mainly to resharpen my carbide tipped turning tools. I was a bit hesitant at first so I tried it on my pocket knife. The edge was sharpened with just a few strokes, so I moved on to some of my dulled carbide tips. I used a drop of honing solution then proceeded to sharpen a round cutter using a circular motion on the rough side, then turned to the finish side. The results were excellent, a new cutting edge on a dull cutter. I then went to a square tip only using a back and forth motion for the sides, once again starting with the rough side then the finish side. The results were excellent, I now have sharp cutting tips on all my tools. For turners using carbide tipped tools, this is one way to hold down the cost of replacing tips when worn.
Scored 3.7/5.0 – From 201 Customer Reviews
Priced From $11.07
- High longevity, diamond-coated whetstone set
- (3) color-coded whetstones with the following grits: Blue-150, Yellow-300, Red-450
- Dimensions: 6” x 2” x 1mm – making these whetstones very efficient yet compact tools
Yup. The backing came off. Who cares!? It’s so cheap! These are awesome for roughing a new bevel! They are not “fine” grits in any way, but so great for flattening synthetic stones and shaping edges. Come on, glue it back on. Mount it on something else. Seriously… if you buy these I’m assuming you are a crafts person. Not hard to fix the peeled backing. What a great deal on diamond plates.
Scored 4.0/5.0 – From 12 Customer Reviews
Priced From $48.95
- The Best Value We’ve Seen! 3 stones included.
- Extremely fast 300, 600 and 1200 grit diamond sharpening stones
- Everything you need to go from dull to razor sharp!
- Quickly sharpens anything with a cutting edge
- No Questions Asked 100% Guarantee
These sharpening plates are a great addition to my sharpening kit. I use them to sharpen everything from kitchen knives, to wood chisels, to plane irons.These stones do the bulk of any sharpening I do for my tools. I use these stones in conjunction with Trend U*DWS/HP/LS Honing Compound Leather Strop charged with Green Chrome Oxide Compound, 6 oz. to achieve the blades I have uploaded photos and videos of in this review.The only drawback to these plates are that they are just short of 2 inches wide even though it is advertised as 2 inches wide. Another thing that is odd about their dimension, is that the height is not constant from plate to plate. This does not bother me much and there may be a good reason for it–I am not sure.Dimensions can be seen on the photos I have attached.Included in this set are 3 plates–300 grit, 600 grit, and 1200 grit. These plates DO NOT come with the wooden holder trays. I made those myself in order to be able to lock the plate into a vice. It is relatively easy to make some quick recessed wooden blocks to hold these plates.Pros:*All grits work as advertised*Nice and flat*I am able to turn a burr no problem on these platesCons:*Just shy of advertised 2 inch width (Around 1 15/16 inch wide). So this prevents me from sharpening a 2 inch plane iron using a honing guide. (-1/2 a star).Additional Considerations:The 2 inch width problem stated above can be worked around. I just hold the blade diagonally to sharpen it. This prevents me from using a honing guide but I find myself relying less on the honing guides these days any ways. It would be nice to get the full 2 inch width though.Another thing–DO NOT use water as medium for sharpening on these plates. It will rust the plate. I personally use some windex and it works perfectly without rusting the plates or getting your hands too dirty. Pick up some SafeTouch Nitrile Exam Gloves, Non Latex, Powder Free, Large, Box/100 if you do not want the windex on your hands.Overall: 4.5/5 stars (>=.5 rounds up, <.5 rounds down) => 5 starsIf you have any further questions regarding the product in my review please leave a comment below and I will get back to you as soon as possible.
Scored 4.2/5.0 – From 54 Customer Reviews
Priced From $7.19
- 2″ x 6″ workable surface
- 400 grit coarse side
- 600 grit fine side
- Can be used with water (with or without soap) or dry
I wanted something small enough to throw in my pack but big enough to sharpen my bigger blades. This works great. There is a coarse and fine side but I mostly use the fine side since I only need to touch up the edge on my blades every so often. I love that it’s thin and wide which makes it easy to pack in my hiking pack. I leave it in the cardboard sleeve it came in to keep it clean of debris, but time will tell how long that will last. It works best laying on a flat surface which is one draw back for me since I like to hold my sharpeners in one hand and knife in the other. It’s a little too thin for that, but again, that’s my own preference.It does tend to slide around on smoother surfaces, so a solid wood workbench or something like that works best. If you love making things, a 1 or 2×4 with leather on both sides can double as a holder and strop giving you a whole sharpening system. The construction seems really solid and robust and the adhesive they used to hold the grit on seems like it’ll last for years. After using this stone I usually strop with leather and it leaves my knives razor sharp. Overall a great purchase and great value for the price.
Scored 4.3/5.0 – From 143 Customer Reviews
Priced From $97.96
- A great gift – perfect sharpener for at home or in the shop offering a sharpening surface to satisfy a variety of edge care needs
- Three diamond stones in extra-fine to polish and refine an edge, fine for a razor sharp edge and coarse to transform a dull edge
- Sharpens edges 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
Excellent!I have been using Japanese water stones for years on my plethora of chisels and plane irons. My set goes from 320 to 8000 grit and they allow me to achieve an absolute mirror finish. So why am I reviewing diamond stones? Well, all water stones dish (cup) in with use and are soft enough to gouge easily. They also groove easily i.e if you re-bevel a 1/4″ chisel and move on to a wider one next over the same tract, you can observe the lack of cutting on the chisels bevel. Obviously there are workarounds – start with widest first, do run along same path). While this is especially true of the lower grits, even the 8000 which is relatively hard will require resurfacing, which can be a time consuming task. So I decided to give diamonds a try. I have used small diamond cards for touching up router bits but this was my first time on my chisels and irons.I got this set for several reasons: DMT’s reputation for quality, a good spread of 3 different grits, and a great price for a 3 stone set. I was worried about the 6×2 inch size as I always use a Veritas jig (never developed the skill of hand holding) resulting in a shorter stroke, and my irons are 2″ wide (easy to miss the edge on a 2″ stone).Results:* They cut is very fast. I chose not to use the word `aggressive’ as it may imply a coarser than expected cut, I compared the surface scratch pattern left from these to ones left by comparable water stones and they matched up well. The difference was how fast I got there, it required approximately 1/3rd as many strokes on the diamond stones to achieve the same result!* They are ready for use instantly, you should allow 30 minutes of soak time prior to using Japanese water stones.* Virtually no mess (comparatively speaking). Water stones generate a lot of slurry quickly and must be washed down constantly. These diamond stones only need a light misting and the “polka-dot” design does a good job of capturing the particles making clean up fast, easy, and infrequent, all it requires is a wipe down with a damp rag. I think I would prefer a continuous surface on anything smaller than ¼” (DMT has other products that provide this).* The finest grit in this set is only 1200 and the coarsest is 325. I can see and feel the difference in performance when I polish the final bevel with my 8000 water stone but for most work and most users the 1200 finish is fine. Note that DMT does make 2200 and 8000 grit stones but I have not tried them (yet). If you need to do a major repair of change the bevel angle, it will take you awhile with the 325 stone. DMT should think about offering a 4 or 5 stone set, but these 3 grits are sufficient for a wide variety of sharping.* Very light weight. The diamond plate is laminated to a hollow thin plastic box. This is a bit of a disappointment as it gives it a cheap feel (may be one reason for the set being so economically priced). Heavy downward pressure can/will deform, running surface flatness. However, as they cut so well you only need a slight down force. The big disadvantage is that you really cannot use them out of the wood box as they move around easily. The box does do a good job holding them in place.* The Box. It is a nice holding fixture and has rubber feet on the bottom. For many things (like chisels) it is convenient to have all three stones held alongside each other so you can quickly go from one to the next. However it is a pain for things like long knives. The lid just sort of sits there, allowing it to fall off easily. Some sort of latch or magnets to hold it on would be an improvement.* DMT uses a color code to identify grit. While I don’t mind this it really would be nice if they printed the grit number on the stone or the holder.Unknowns: How long will they last? Japanese water stones can last several life times, resurface (flatten) it and you have a new stone, I am still using the ones I got 15 years ago and only the very coarsest ones are showing their age (thinning from flattening). How long these DMT’s will maintain their cutting ability remains to be seen but from everything I have read, they should last a very long time. However the small diamond hones (brand x not from DMT) I use on router bits have not lasted, so I remain a skeptic. I will update this review down the road and let you know.I highly recommend these as a starter set for anyone looking to try diamond sharpening stones and I will likely be buying additional DMT products. I do not think you can find a better value for the price of this set.
Scored 4.6/5.0 – From 421 Customer Reviews
Priced From $13.63
- 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
I have finally found an effective and convenient system for keeping my blades sharp in the field. Up to now I have been a fan of fine sharpening stones (like Smith’s Arkansas stones) which work, but can take a long time to restore an edge. With the coarse side of the stone I can bring my Cold Steel bushman and GI tanto knives to near hair shaving sharpness in a few minutes and with the fine side I can bring them to hair shaving sharpness without stropping on a piece of leather.I was surprised by these results since the fine side is not as fine as the stones I normally use. The technique I use is to lay the blade flat on the stone and then tilt it up until the edge just meets the stone and then swipe. With a seven inch blade, this takes some practice on a four inch stone, but it can be done.I tried sharpening my moras, bucks, and spydercos with equal success. I prefer to sharpen those brands by simply stropping on leather in most cases, but it is nice to know I can keep those knives razor sharp with just the diamond stone.Another feature I like is the handle. I can use this sharpener while standing, sitting or propped up against a tree. For me, at least, this product meets all my sharpening needs.
Scored 5.0/5.0 – From 2 Customer Reviews
Priced From $119.95
- The Best Value We’ve Seen! 3 stones included.
- 8″ x 3″ – Extremely fast 300, 600 and 1200 grit diamond stones
- Quickly sharpens all knives and tools (including ceramic knives)
- Universal Stone Holder included
- No Questions Asked 100% Guarantee
Great sharpening stones, great customer service, great price! When I ordered the complete set of course, fine and extra fine plates they were out of stock on the fine plate. So, instead of making me wait, they sent a double sided fine/extra-fine plate along with the course and extra-fine. Takes up the same space on my sharpening station, but gives me a second extra-fine plate, should I need it. It also came with a free stone holder, which I don’t actually use with these sharpening plates, but I do use with a Japanese waterstone I sometimes use. Over all, I am very happy with the company and the product.
Scored 3.8/5.0 – From 83 Customer Reviews
Priced From $15.98
- Essential tool for achieving professional sharpening results on knives, scissors and tools
- Four-sided whetstone, each side embedded with industrial diamonds in grits 200, 300, 400 and 600
- Durable ABS holder with non-slip rubber pads for safer and easier honing action
- Large 6-Inch by 2-Inch surface requires fewer strokes; rotate block for progressively finer abrasion
- Vented surface can be used wet or dry, provides cleaner plane without build-up
I must own ten different sharpening systems and am looney over SHARP knives and tools.There are more systems other than this block that are more precise….and expensive, butnone that are so versitile and easy to use.I first bought one, for a very nice price of about $19, used it numerous times and then boughtabout 10 more to give to friends and family and to have one at several locations…kitchen, shop, bedroom, etc.I usually remove it from it’s base and can safely hold it in my left hand while shapening with my right due to it’s being about 2″ think which makes it almost impossible to cut yourself.A great tool and a great price.
Scored 4.7/5.0 – From 200 Customer Reviews
Priced From $64.60
- Excellent counter or bench use for sharpening a variety of knives and edges plus a continuous diamond zone for small and pointed tools
- Two sided sharpening with fine for a razor sharp edge and extra-fine to polish and refine an 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 peformance and reliable service
The DMT WM8EF-WB 8-Inch DuoSharp Plus Bench Stone (Extra Fine/Fine With Base) is an outstanding value at $55.While some might find that price to be high, keep in mind that you’re getting a large 3″ x 8″ double-sided diamond sharpener (one side is fine 600-grit for all around sharpening, the other is extra fine 1200-grit for getting your blades to a razor sharp edge). Unlike natural stones, the polymer base also won’t deform. It stays perfectly flat over time. And the sharpening goes MUCH faster. 10 swipes on this stone is roughly equivalent to about 50 swipes on an Arkansas stone. Not only do you save time and energy, but it’s much easier to maintain a very consistent blade angle (crucial to effective sharpening) for 10 strokes than it is for 50.This model includes the robust plastic base as well. The stone snaps into the base very snugly (no looseness) and the wide feet provide for a very stable platform while sharpening. For added security, you can fasten the base to a workbench or other large surface. However, I found the base stable enough on its own to be perfectly serviceable on a kitchen countertop. It would be nice if the base had grippy rubberized feet to reduce slippage on smooth surfaces for those like me who don’t want to permanently affix it to a workbench, but if you brace one end of the base against something (such as the edge of the sink or the stove) and draw the knife in that direction, it works fine and won’t slip.I’ve used this stone to sharpen everything from my smallest Swiss Army blade (2″ stainless) up to my Ka-Bar/Becker BK7 blade (7″ 1095 cro-van steel). Sharpening a large 7″ knife on this stone is very easy. The general rule of thumb is that your stone should be at least as long as your blade, so if you have knife blades longer than 8″, you may want to spend more for the 10-inch version of this stone (which at the time of this review, is inexplicably listed at nearly three times the price!?). For my needs, the 8 inch stone is plenty long.There’s nothing to complain about with regard to the quality and functionality of this product. It’s first rate and will do a very good job sharpening your knives, assuming you take time to learn the proper technique. Throw in an old belt with sharpening compound for stropping, and you will have the tools to put a scary sharp edge on most any knife.The only shortcoming I notice with this product is the ambiguity of the stone in determining which side is fine (600-grit) and which extra fine (1200-grit). As it turns out, it is color coded by a small circle at one end of the stone, which then can be cross-compared with a list on the packaging to determine the grit. But it’s strange to me that they didn’t just stamp “600-grit” and “1200-grit” on the respective sides instead of the color-coding–which would be clearer and more convenient. I simply wrote the proper grit (with an appropriately pointed arrow) on either side of the stone in permanent black ink. Technically, you can tell by feel as well. Regardless, some people are sure to be inexperienced and inadvertently use the extra fine side to initially sharpen a very dull blade, and then will get dismayed by the slowness. The fine (600-grit) side will restore a fairly dull blade very quickly, however, and is probably the best “general purpose” grit for knives. For quick blade touch ups, you could skip using the extra fine side altogether unless you really need to get your blades shaving sharp or just enjoy bringing the edge up to a more polished look.All in all, this is a great product and well worth the price. Sure, natural stone sets with comparable grits can be had for half as much money, but they require more effort and care, and thus, introduce more room for error. This is your best bet for faster, superb sharpening results. If idiot-proof convenience is your priority, you may prefer a pull-through sharpener. However, keep in mind that those kind will not put nearly as nice or as long-lasting of an edge on your knives. They are convenient thought. In my opinion, a diamond stone like this one is the best way to do it right.[UPDATE 4-1-2014: I’ve been using this sharpener a lot for a month and a half now and it is the best diamond sharpener I’ve ever owned. It works very quickly on every blade and steel I’ve tried, and can take a blade from very dull to very sharp in only a few dozen strokes. The trick is to keep the sharpening angle consistent for each stroke (I sharpen at 21 degrees for wilderness knives, and about 17 degrees for kitchen knives), and apply the right amount of pressure as you stroke. Once you get a feel for it, this sharpener works superbly.]
Only one whetstone might not be enough to sharpen all your knives as they are of different sizes and blade types. Therefore, you will need more stones that have different grit sizes or coarseness to sharpen the knife. The whetstone that you choose must not required too much maintenance as it can be frustrating to first clean the whetstone and then use it for knife sharpening.
You must remember that a high quality stone lasts longer than an inexpensive one. Therefore, invest in a good quality diamond sharpening stone after reading our review of the best diamond sharpening stone.
We would love to have your opinion on our review of the best diamond sharpening stones. Do let us know which of these stones you chose and what has been your experience of using it.