Best Diamond Sharpeners in 2026
Daisy
Last Updated: Jul 18, 2026
Daisy
Last Updated: Jul 18, 2026
* 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.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| TYBORIEN | 6.05 | ✅ | ✅ | ✅ |
【Rechargeable Pencil Sharpener】: With built-in 2000 mAh Lithium Battery, our rechargeable electric pencil sharpeners can be used 300 times after fully charging. Two power supplies, USB operate or wall outlet. fully charge: 2 hours with AC adapter ( not included); 4 hours with USB cable ( Included).
【Fast Sharpen Automatic Pencil Sharpener】: Our automatic pencil sharpener is made of high quality material and heavy duty helical blade, durable and fast sharpen. It’s powerful enough to sharpen 6-8mm No.2 pencils and colored pencils to a perfect point within 3-5 seconds. Powerful motor and helical blade provide the sharpener lifetime more than 4,000 times.
【Auto Stop & Extrude Broken Lead】: Handheld electric pencil sharpener for kids and adult use will stop at a perfect point and extrude broken lead automatically. Safety device design will automatically stop the sharpener running when the top lid is open.
【Large Capacity & Easy for Cleaning】: Large shavings reservoir can hold a lot of shavings, and scraps will not fall out easily when the top open lid is closed. No need to empty constantly, perfect for student and teacher use. When clean up the shavings, please simply hold the pencil sharpener and make the shavings bin point at the garbage can, then take it out in the direction of the arrow to do cleaning.
【100% Satisfaction Guarantee】: If your pencil sharpeners have any quality issue within one year, please contact us and we provide one year warranty for our products.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Tihoo Stationery | 6.59 | ✅ | ✅ | ✅ |
🐅BATTERY OPERATED PENCIL SHARPENER: Powered by 4 AA batteries (not included), the strong motor and lightweight design make it perfect for use at home, school, or at the office. The small size makes it easily portable.
🐅DUAL HOLE DESIGN: This electric pencil sharpener works great for regular and colored pencil. Featuring two separate holes for different pencil diameters: 6-8 mm and 8-12mm.
🐅AUTOMATIC & SAFETY DEVICE: The pencil sharpener works after holding a pencil in you hand .It 's very safe when you open the transparent cover on the side so that it can't work .
🐅PORATBLE : This heavy duty electric pencil sharpener has high quality spiral steel blades and Small volume and lightweight, it is convenient for kids and students in home, school classroom and office to carry and use.
🐅 EASY TO CLEAN: The pencil sharpener is very easy to clean, you only need to remove blade ,the blade is removable that convenient for you to take blades apart from sharpener and clean it up.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| TYBORIEN | 6.30 | ✅ | ✅ | ✅ |
【Fully Automatic Electric Pencil Sharpener】Just put the pencil in our pencil sharpener, it will grab pencils and finish the sharpening automatically. It only takes 3-5 seconds, no any touch during the sharpening to free your hands. This pencil sharpener will auto stop at a perfect point and save your pencils.
【Rechargeable Battery Pencil Sharpener】Thanks to the 2000mAh rechargeable battery, our pencil sharpener can sharpen 300 times per full charge. And it is sharpening available in charging time, you don't have to wait for the full charged in urgently needed. Charge via usb is so convenient that you could charge this pencil sharpener by laptop, power bank or adapter. (adapter is not included)
【Strong Helical Blade】The industrial strength blade makes sure that the blade life is over 8000 sharpening times. It works great on round, triangular and hexagonal pencils within φ6-8mm. Each sharpening time is 3-5 seconds with full motor force to save your time and pencils. The blade is replaceable that ensures the long service life of pencil sharpener.
【Also for Short Pencils】Most of electric pencil sharpeners cannot sharpen the short pencils. You have to get a manual pencil sharpener and manual sharpening by yourself. This pencil sharpener is designed to accept short pencil which is short to 2.5 in that you could take full use of your pencils before discarding.
【2 Adjustable Sharpness Levels】 Sharpe and blunt, 2 different sharpness levels allow the user to choose the mode which they need. 2 sharpness nibs of both won't be sharpened too long or too sharp. It prevents the pencil lead breaks on the paper and ensures the smooth writing.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| TYBORIEN | 6.35 | ✅ | ✅ | ✅ |
【Fully Automatic Electric Pencil Sharpener】Just put the pencil in our pencil sharpener, it will grab pencils and finish the sharpening automatically. It only takes 3-5 seconds, no any touch during the sharpening to free your hands. This pencil sharpener will auto stop at a perfect point and save your pencils.
【Rechargeable Battery Pencil Sharpener】Thanks to the 2000mAh rechargeable battery, our pencil sharpener can sharpen 300 times per full charge. And it is sharpening available in charging time, you don't have to wait for the full charged in urgently needed. Charge via usb is so convenient that you could charge this pencil sharpener by laptop, power bank or adapter. (adapter is not included)
【Strong Helical Blade】The industrial strength blade makes sure that the blade life is over 8000 sharpening times. It works great on round, triangular and hexagonal pencils within φ6-8mm. Each sharpening time is 3-5 seconds with full motor force to save your time and pencils. The blade is replaceable that ensures the long service life of pencil sharpener.
【Also for Short Pencils】Most of electric pencil sharpeners cannot sharpen the short pencils. You have to get a manual pencil sharpener and manual sharpening by yourself. This pencil sharpener is designed to accept short pencil which is short to 2.5 in that you could take full use of your pencils before discarding.
【2 Adjustable Sharpness Levels】 Sharpe and blunt, 2 different sharpness levels allow the user to choose the mode which they need. 2 sharpness nibs of both won't be sharpened too long or too sharp. It prevents the pencil lead breaks on the paper and ensures the smooth writing.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| TYBORIEN | 6.30 | ✅ | ✅ | ✅ |
Dual Power Sources: This electric pencil sharpener is available for 2×AA batteries (Not Included) or USB charging. It is convenient for you to use this sharpener anywhere. Both indoor and outdoor.
Cute Top Lid: The top lid is designed in the shape of a cat's paw. Not only cute, you can also pinch the paw to turn the lid. There is a triangular mark on the back of sharpener. Please lock or unlock the top lid by how the mark shows.
More Sharp Tungsten Steel Blade: The blade of this pencil sharpener is made of tungsten steel which makes the blade harder than normall blade. Each life span of tungsten steel blade is more than 5000 times. And the thickness of the blade is 2mm which is thicker than the 1mm of normal blade.
Suit for The Pencils of 6-8mm with 2 Pencil Nibs: This pencil sharpener is fit to almost all 6-8mm pencils. Not only the No.2 and colored pencils but also for the hard wooden pencils. It could also sharpen the round, hexgonal and triangual pencils. And it equipped with 2 sharpness setting for you, sharp & blunt. It's easy for you to switch the sharpness mode which you need.
Portable Pencil Sharpener: This sharpener is compact and you can put it in your bag easily. Just insert the batteries or connect to power bank, it will get work immediately. It's ideal for student, artists, engineers and architects.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| TYBORIEN | 6.35 | ✅ | ✅ | ✅ |
Dual Power Sources: This electric pencil sharpener is available for 2×AA batteries (Not Included) or USB charging. It is convenient for you to use this sharpener anywhere. Both indoor and outdoor.
Cute Top Lid: The top lid is designed in the shape of a cat's paw. Not only cute, you can also pinch the paw to turn the lid. There is a triangular mark on the back of sharpener. Please lock or unlock the top lid by how the mark shows.
More Sharp Tungsten Steel Blade: The blade of this pencil sharpener is made of tungsten steel which makes the blade harder than normall blade. Each life span of tungsten steel blade is more than 5000 times. And the thickness of the blade is 2mm which is thicker than the 1mm of normal blade.
Suit for The Pencils of 6-8mm with 2 Pencil Nibs: This pencil sharpener is fit to almost all 6-8mm pencils. Not only the No.2 and colored pencils but also for the hard wooden pencils. It could also sharpen the round, hexgonal and triangual pencils. And it equipped with 2 sharpness setting for you, sharp & blunt. It's easy for you to switch the sharpness mode which you need.
Portable Pencil Sharpener: This sharpener is compact and you can put it in your bag easily. Just insert the batteries or connect to power bank, it will get work immediately. It's ideal for student, artists, engineers and architects.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Tihoo Stationery | 6.69 | ✅ | ✅ | ✅ |
Battery Powered Pencil Sharpener: This sharpener is powered by 2×AA batteries. Tips: Batteries are not included.
Transparent Shaving Container: You could see how the pencil sharpener working through the transparent piece. It helps you to see storage of pencil shavings clearly. Pinching the twin side of container softly and remove it, the shavings will drop down to garbage can easily. It's kindly for children.
Upgrade Tungsten Steel Blade: The tungsten steel blade is different from the usual blade. It is harder and owning longer service life. The thickness of the tungsten steel blade is 2mm which is thicker than the 1mm of usual blade. Life span of each blade is more than 5000 times.
Fit to Almost All 6-8mm Pencils: Suit for the shape of round, hexgonal and triangual pencils. This sharpener could sharpen the No.2 and colored pencils fast and also for wooden pencils.
Cordless Pocket Pencil Sharpener: This sharpener is cpmpact and portable. No extra USB cord or AC adapter needed. You can put it in your bag or pocket easily. It's ideal for student, artists, engineers and architects.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Tihoo Stationery | 6.69 | ✅ | ✅ | ✅ |
Battery Powered Pencil Sharpener: This sharpener is powered by 2×AA batteries. Tips: Batteries are not included.
Transparent Shaving Container: You could see how the pencil sharpener working through the transparent piece. It helps you to see storage of pencil shavings clearly. Pinching the twin side of container softly and remove it, the shavings will drop down to garbage can easily. It's kindly for children.
Upgrade Tungsten Steel Blade: The tungsten steel blade is different from the usual blade. It is harder and owning longer service life. The thickness of the tungsten steel blade is 2mm which is thicker than the 1mm of usual blade. Life span of each blade is more than 5000 times.
Fit to Almost All 6-8mm Pencils: Suit for the shape of round, hexgonal and triangual pencils. This sharpener could sharpen the No.2 and colored pencils fast and also for wooden pencils.
Cordless Pocket Pencil Sharpener: This sharpener is cpmpact and portable. No extra USB cord or AC adapter needed. You can put it in your bag or pocket easily. It's ideal for student, artists, engineers and architects.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Tihoo Stationery | 6.59 | ✅ | ✅ | ✅ |
【High Quality Pencil Sharpener】Thanks to the Strong motor and helical blade, this pencil sharpener could sharpen well a new pencil in 5 seconds and a dull pencil in 3 seconds. It is faster than manual sharpen so that you could save a lot of time.
【Sharpen Almost All of 6-12mm Pencils】This pencil sharpener could sharpen the standard and large pencils such as No.2 pencils, colored pencils and etc. And it is also suit for different shape of pencils, include the round, triangular and hexagonal pencils.
【Stop the Waste of Pencils】This electric pencil sharpener is equipped with Auto-stop function. When the pencil is sharpened well, the pencil sharpener will stop sharpening automatically. It is really helpful that helps you to save the pencils.
【Replaceable Strong Helical Blade】Equipped with strong helical blade which could sharpen over 8000 times. And we bring you a replacement blade in the package that ensures the long service life of the electric pencil sharpener.
【2 Adjustable Sharpness Levels & Large Capacity】There are 2 sharpness settings for you, sharpe and blunt. Both of the 2 sharpness nibs will not be sharpened too long or too sharp that prevents the pencil lead breaks on the paper. The large transparent capacity shavings box makes it easier to know when it should be emptied. And the top open lid helps to clean the shavings easier and won't mess up your desk or floor.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Tihoo Stationery | 6.69 | ✅ | ✅ | ✅ |
【High Quality Pencil Sharpener】Thanks to the Strong motor and helical blade, this pencil sharpener could sharpen well a new pencil in 5 seconds and a dull pencil in 3 seconds. It is faster than manual sharpen so that you could save a lot of time.
【Sharpen Almost All of 6-12mm Pencils】This pencil sharpener could sharpen the standard and large pencils such as No.2 pencils, colored pencils and etc. And it is also suit for different shape of pencils, include the round, triangular and hexagonal pencils.
【Stop the Waste of Pencils】This electric pencil sharpener is equipped with Auto-stop function. When the pencil is sharpened well, the pencil sharpener will stop sharpening automatically. It is really helpful that helps you to save the pencils.
【Replaceable Strong Helical Blade】Equipped with strong helical blade which could sharpen over 8000 times. And we bring you a replacement blade in the package that ensures the long service life of the electric pencil sharpener.
【2 Adjustable Sharpness Levels & Large Capacity】There are 2 sharpness settings for you, sharpe and blunt. Both of the 2 sharpness nibs will not be sharpened too long or too sharp that prevents the pencil lead breaks on the paper. The large transparent capacity shavings box makes it easier to know when it should be emptied. And the top open lid helps to clean the shavings easier and won't mess up your desk or floor.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| TYBORIEN | 6.30 | ✅ | ✅ | ✅ |
Hands-free Electric Pencil Sharpener: This is a real automatic pencil sharpener. Plug the pencil into the pencil sharpener, and the sharpener will grab the pencil and start sharpening it automatically. After sharpening, the sharpener will eject the well-sharpened pencil for you. You do not have to hold the pencil during sharpening.
Good Works with Colored Pencils: Colored pencils have softer lead than other pencils. It is therefore a common occurrence that the lead of colored pencils is broken in the electric pencil sharpener. Our pencil sharpener is not only designed for hard pencils, but also has a special function for colored pencils. When the colored pencil is inserted, the pencil sharpener will sharpen the pencil with gentle force to prevent the lead from breaking.
Built-in 2000mAh Rechargeable Battery: This electric pencil sharpener comes with a 2000mAh lithium battery that can sharpen the pencil 600 times after a full charge. The sharpener also allows it to be used while charging. The usb cable ensures that it can be charged everywhere (like power bank, laptop and etc).
3 Sharpness Levels for Multi-occasion: This pencil sharpener is equipped with upgrade pencil nib adjustment parts that allows 3 pencil sharpness levels (sharp, medium and blunt) for users. You can choose the right level of sharpness for your needs.
Sharpening Available for Short Pencils: As with regular pencil sharpeners, you must hold the pencil while sharpening. It is difficult to sharpen short pencils either in electric or manual pencil sharpeners. Thanks to the pencil grabbing parts, our pencil sharpener could sharpen the short pencils (short to 2.5in). You can make the most of your pencils before discarding them.
Here is the list of top-rated brands that were evaluated by PM.
| Brand | Count |
|---|---|
| Tenwin | 9 |
| Tihoo | 2 |
We've carried out a comprehensive analysis of 1,067 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 $20.16, with top brands including and
Our team of expert editors reviewed these high-quality items and handpicked the top 11 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.
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