Best Diamond Sharpeners in 2026

Daisy
Last Updated: Jul 17, 2026

At a Glance: Our Top Picks for Diamond Sharpeners

Electric Pencil Sharpener Heavy Duty, AFMAT Pencil Sharpener Electric for Classroom, UL Listed Plug in Pencil Sharpener for 6.5-8mm No.2/Colored Pencils, w/Upgraded Helical Blade(Sharpen 10000 Times)
#TOP1
Electric Pencil Sharpener Heavy Duty, Afmat Pencil Sharpener
9.9
PM SCORE
AFMAT Electric Pencil Sharpener, Pencil Sharpener for Colored Pencils, Auto Stop, Super Sharp & Fast, Electric Pencil Sharpener Plug in for 6-12mm No.2/Colored Pencils/Office/Home-Black
#TOP2
Afmat Electric Pencil Sharpener, Pencil Sharpener For Colored 
9.9
PM SCORE
AFMAT Long Point Pencil Sharpener, Art Pencil Sharpeners, Charcoal Pencil Sharpener for Artists, Drawing Pencil Sharpener Manual for Art Pencils/Drawing/Sketching Pencils(φ6-8.2mm), Adjustable Points
#TOP3
Afmat Long Point Pencil Sharpener, Art Pencil Sharpeners,
9.7
PM SCORE

* PickSmartly editors independently research, review, and endorse the top products through comprehensive data analysis. We may earn a commission for qualifying purchases made through our product links.

Summary of the Best Diamond Sharpeners of 2026

Electric Pencil Sharpener Heavy Duty, Afmat Pencil Sharpener Electric For Classroom, Ul Listed Plug In Pencil Sharpener For 6.5-8Mm No.2/Colored Pencils, W/Upgraded Helical Blade(Sharpen 10000 Times)

AFMAT
PS105
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
AFMAT OFFICE 9.89

Features

【Upgraded Motor-10000 Sharpening Times】This heavy duty electric pencil sharpener is a must for teachers or anyone who has a heavy use on pencil sharpeners. With upgraded stronger motor, this electric pencil sharpener can sharpen over 10000 times in only 3-5 seconds with ease. You will get a sharp and beautiful pencil point each time. Please don't push the pencil too hard when sharpening, or it will make "hum" noise and not sharpen pencils.

【UL Listed Electric Pencil Sharpener】Our classroom pencil sharpener is UL listed and has no issues after sharpening 200 pencils at a time. It is faster, more durable and powerful than any other helical blade sharpeners due to its bigger and stronger helical blade and motor. Perfect gift for kids, teachers, students, engineers, children, artists, and anyone who needs a heavy duty pencil sharpener!

【Colored Pencil Sharpener】 This professional pencil sharpener will start sharpening automatically when you insert a pencil. Take out the pencil when the motor sound changes and the resistance of sharpening decreases. Great for graphite and colored pencils within 6.5-8mm, such as Prismacolor Premiers, Derwent, Verithins, Faber-castell, Koh-I-Noor Progresso. Please note that it is not recommended to sharpen SOFT CORE pencils as it may cause jams in blade.

【Commercial Pencil Sharpener】 High efficiency, fast speed and heavy use make it an industrial and commercial pencil sharpener. It has two safety features: stop working when the shavings box is removed or not closed tightly and stop sharpening when it is overheating . Non-skid food pads at the bottom make it more stable to sharpen.

【Electric Pencil Sharpener Plug in】 This AFMAT electric pencil sharpener is easy to use. Just plug the sharpener into a 120V outlet and start to use.

Afmat Electric Pencil Sharpener, Pencil Sharpener For Colored Pencils, Auto Stop, Super Sharp & Fast, Electric Pencil Sharpener Plug In For 6-12Mm No.2/Colored Pencils/Office/Home-Black

AFMAT
PS92
8.70 X 4.02 X 4.02 Inches
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
AFMAT OFFICE 9.89

Features

【FAST PENCIL SHARPENER EVER】With strong motor, this AFMAT electric pencil sharpener can sharpen a new pencil in 5 seconds, and a used pencil in 3 seconds. If you are fed up with those pencil sharpeners which take forever to sharpen a pencil, add this colored pencil sharpener into cart. You can save a lot of time to do other work.

【COLORED PENCIL SHARPENER FOR LARGE PENCILS】If you are looking for a pencil sharpener that can sharpen your standard and large size pencils, this electric pencil sharpener will be all that you need. It can sharpen almost all 6-12mm pencils, such as No.2 pencils, colored pencils, and even hard charcoal pencils.

【AUTO STOP / NO OVER SHARPENING】 This electric pencil sharpener will stop sharpening automatically when the pencil is sharpened well, which really saves pencil. Th broken leads will be ejected from the blade automatically. The top open lid and large capacity shavings box make it easier to clean the shavings and never mess up your desk or floor.

【HEAVY DUTY PENCIL SHARPENER WITH 2 PENCIL NIBS】With strong and durable helical blade, this AFMAT pencil sharpener can sharpen over 8000 times. With modern design, the helical blade can be replaced easily! This electric sharpener has 2 sharpness settings: blunt and sharp. If you are an artist, you may need a really sharp point. If you buy this sharpener for your kids, you can adjust the setting to a blunt point.

Afmat Long Point Pencil Sharpener, Art Pencil Sharpeners, Charcoal Pencil Sharpener For Artists, Drawing Pencil Sharpener Manual For Art Pencils/Drawing/Sketching Pencils(Φ6-8.2Mm), Adjustable Points

AFMAT
PS10
0.57 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
AFMAT OFFICE 9.89

Features

【Professional Art Pencil Sharpener】Still use the old manual pencil sharpener? Look at our helical blade manual pencil sharpener for artists which can sharpen 3000 times. Advantages: Fast, labor saving, lead not easy to break, large capacity shavings box and adjustable pencil nib.

【Long Point Pencil Sharpener】Designed for φ6-8.2mm sketching and drawing pencils, this manual pencil sharpener will give you a long point, ranging from 8mm-20mm. Thicker core, longer points. An inexpensive choice for artists! Please note that this model do not compatible with pastel pencils or any pastel buildup or very soft and brittle lead pencils. Please check your pencils compatibility before purchased. Thank you.

【Adjustable Pencil Nib with Sandpaper】The sharpness of the nib can adjustable by rotate the knob on the handle. If you want a NEEDLE SHARP point, use the black sandpaper embedded in the shavings box.

【Pencil Sharpener for Artist】This art pencil sharpener is your good partner. When you think of an elegant sketch set gift, you need to look at this. It really makes the painters feel comfortable. Buy it now for your 8mm art pencils!

【Self-feed Pencil Sharpener】This artist pencil sharpener is super easy to operate, just insert the pencil into the holder and crank clockwise while holding the sharpener, the pencil starts to move inside the sharpener with each crank; when the resistance decreases crank it anticlockwise and the pencil starts to come out on its own! Do not sharpen any more when the pencil is done, or it will chew up your pencils!

Heavy Duty Electric Pencil Sharpener, 6 Holes, Afmat Classroom Pencil Sharpener For 6-11Mm Pencils, Auto Stop, Super Fast, Never Eat Pencils, School Teacher Must Have Pencil Sharpeners Plug In, Black

AFMAT
PSX2BK
6.90 X 3.30 X 3.30 Inches
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
AFMAT OFFICE 9.90

Features

This 6-hole electric pencil sharpener fits almost all standard and jumbo pencils varying in size(withiφ11.2mm) and shape(round, triangular, hexagonal, etc), and gives a sharp, even, smooth pencil point each time.

This heavy duty pencil sharpener can sharpen 7000 times without overheating issues which is great for heavy use in school.

This classroom pencil sharpener is incredibly fast in sharpening speed, 3s for a new pencil and 2s for a used pencil. Teachers must have this breakage-free electric pencil sharpener.

This colored pencil sharpener will auto stop when the pencil is sharpened well, which really saves pencils. Kids can easily handle this pencil sharpener.

This pencil sharpener has a larger and see-through shavings bin which rarely needs to clean. The 4 suction cups at the bottom are strong enough to hold this pencil sharpener in place.

Color Pencil Sharpeners, Electric Pencil Sharpener Battery Operated For 8Mm Pencils, Hands Free Pencil Sharpener, Sharp Pencil Sharpener For Artists, Sharpen 1.4Inch Short Pencils,Save Colored Pencils

AFMAT
PSA8
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
AFMAT OFFICE 9.89

Features

🙌【Hands free Electric Pencil Sharpener】Totally automatic sharpening. Drop a pencil in, it pulls, sharpens and ejects. It's awesome to not have to hold the pencil and determine the precise friction for a perfect sharpen.. pull, check, push again... Great for people with arthritis who like to color!

【Short Pencil Sharpener for Colored Pencils】This pencil sharpener for colored pencils is amazing for short pencils that usually do not fit in regular electronic pencil sharpener and need to use manual sharpener. The powerful and stronger helical blade(3000 sharpening times) will blow you away upon its stall-free operation and longevity even getting it used a lot. This small electric pencil sharpener is the most sensible investment for anyone who needs superior quality.

✌️【Battery Operated Pencil Sharpener】 This electric pencil sharpener can be powered by 4 AA batteries (not included) or AC adapter (included). It's personal size 3.7” x 2.4”x 4.8” makes it a portable pencil sharpener. The dual power supply options can be an added plus for classroom use and outings also. Both ways are sufficiently strong to drive, with no loss of power even when using batteries, and consistent mighty motor force by plugging in to go through constant student use.

👌【3 Kids' Safety Designs】 1. Automatically work when plugging the pencil into the shaving entrance, Not work when shavings box opened. 2. Fully sealed and hidden blade (No any blade edges exposed when shavings box removed for dumping). 3. Hands-free sharpening means touch-free operation during use. Large visible shavings box is easy to open and barely needs emptying.

👏【Lead Breakage-free】 The most advanced pencil sharpener makes the sharpest point without breaking lead!The latest lead BREAKAGE-FREE technology ensures frustration-free experience on multiple φ6-8mm pencil types(#2, graphite, sketch, colored pencils, not for extra soft pencils). No issues with the lead breaking off in the sharpener or after it’s sharpened, no struggle with frequent jams or stucked leads inside and no hands covered in graphite.

#TOP6

Afamt Electric Pencil Sharpener, Colored Pencil Sharpener, Electric Pencil Sharpener Heavy Duty, No Eating Pencils, 3 Points Settings, Pencil Sharpener For 6-8Mm/No. 2/Graphite/Colored Pencils, Black

AFMAT
PSB1
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
AFMAT OFFICE 9.89

Features

Fast Sharpen in 3-5s: This electric pencil sharpener can quickly sharpen multiple size of No. 2/6-8mm colored pencils without breaking in 3-5 seconds. It will automatically start working when inserting pencils until sharpen a perfect tip. Be careful not to push too hard or it will stop working.

No Over Sharpening/Pencil Saver: Our sharpener is of pencil-saver feature which can prevent pencil being over sharpening. When reaching an ideal and even point, the sharpener will not continue to sharpen to save pencil, but the motor will still run at a changed tone to indicate your sharpening finished.

Heavy Duty Pencil Sharpener:Can sharpen 250 pencils at a time with a powerful motor and blade. This AFMAT pencil sharpener can sharpen over 10000 times without wearing out. It is definitely the best choice for heavy use.

Safety for Kids:Unlike other pencil sharpeners, we added four small suction cups at the bottom to better fix the sharpener on the desktop, which makes it more safer for little kids to use. In addition, it will automatically stop working if the shavings box is removed or overheating.

Three Sharpness Setting: blunt, medium and sharp. Whether you want sharper or blunt pencils, this pencil sharpener is perfect for your needs. It is an ideal alternative for artists, teachers, students, architecture, classroom, office and home.

Long Point Pencil Sharpener, Artist Pencil Sharpener Automatic, Electric Charcoal Pencil Sharpener For Artists, Art Pencil Sharpener For 6-8.5Mm Drawing /Sketching/Colored Pencils

AFMAT
PSA3
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
AFMAT OFFICE 9.89

Features

【Super Long Point Pencil Sharpener】: This automatic long point pencil sharpener is designed for artists and suitable for all 6-8.5mm sketching and drawing pencils, charcoal pencils, graphite pencils such as Prismacolor, Derwent, STAEDTLER. Rotate the knob to have 3 sharpening effects and the length of the pencil nib ranges from 8mm to 25mm. Please note that pencil points may be broken when very soft charcoal pencils are sharpened.

【3 Pencil Nib Styles Options】The length and sharpness of the nib are adjustable. Twist the top adjuster of this art pencil sharpeners clockwise to get a long and blunt pencil nib. Twist the top adjuster of this art pencil sharpener anticlockwise to get a short and sharp pencil nib. First twist the top adjuster of this charcoal pencil sharpener anticlockwise to get a short and sharp pencil nib, and then change for the other hole by twisting the adjuster clockwise to get long sharp nib.

【Automatic Start & Automatic Stop】: Well insert pencil in the electric art pencil sharpener and keep a firm grip on the pencil and with downward pressure(no excessive force) then it will auto start sharpening. Once well sharpened, it will auto stop sharpening, then pull the pencil out and you will get a perfect long tip.(Sharpening time within 8-12s) Tips: Please don’t pull the pencil out before it finishes sharpening and totally stops.

【Automatic Ejection of Broken Lead】Comes with a stainless steel helical blade, this electric art pencil sharpener for artists can sharpen 3000 times and the lead of the pencil sharpened is not easy to break. Besides, when broken leads get stuck in the sharpening hole, just re-insert a hard graphite pencil like No. 2 pencil and press it down with 2 KG pressure. The broken leads will be excluded automatically.

【Large Capacity Shavings Reservoir】Designed with top open lid and large capacity shavings reservoir. When emptying, screw off lid by twisting anticlockwise, then you can dump the shavings, no need to take down the reservoir. The large capacity reservoir can hold more shavings without emptying that often, besides, the large top opening makes emptying way easier without a mess.

Top 10 sharpeners Brands on Amazon

Here is the list of top-rated brands that were evaluated by PM.

Brand Count
Afmat 36

Top 10 sharpeners Brands Pie Chart


We've carried out a comprehensive analysis of 107,426 reviews on sharpeners, using our selection criteria to identify the best options in the categories. Our findings reveal that most customers typically select sharpeners priced around $29.04, with top brands including and

Our team of expert editors reviewed these high-quality items and handpicked the top 7 sharpeners for your consideration. We've also done extensive research on numerous sellers, identifying the best ones in the categories category. These include and .

We are dedicated to assisting our users in finding the right sharpeners Products based on their needs, saving them considerable time when choosing which sharpeners to buy. We take pride in the number of satisfied users we've helped through our thorough and insightful reviews.