Best Diamond Sharpeners in 2026

Daisy
Last Updated: Jul 19, 2026

At a Glance: Our Top Picks for Diamond Sharpeners

Mercer Culinary Genesis Knife Sharpening Steel, 10 Inch
#TOP1
Mercer Culinary Genesis Knife Sharpening Steel, 10 Inch
9.9
PM SCORE
Mercer Culinary Double Diamond Manual Knife Sharpener
#TOP2
Mercer Culinary Double Diamond Manual Knife Sharpener
9.6
PM SCORE
Mercer Culinary German Honing Steel, 12 Inch
#TOP3
Mercer Culinary German Honing Steel, 12 Inch
9.6
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

Mercer Culinary Genesis Knife Sharpening Steel, 10 Inch

MERCER CULINARY
M21010
2.00 X 1.00 X 15.00 Inches
0.63 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

QUALITY CONSTRUCTION: Precision-forged with high-carbon German steel to help hone your knife edges and increase performance

SUPERIOR DESIGN: The finest handle in forged cutlery; built to last ergonomic handle offers comfort and a non-slip grip, even with wet hands

BEST USE: Keep your cutlery sharp and operating at peak performance. For best results, use honing steel as needed to maintain knife edge

EASY CARE: To maximize the performance and longevity of your sharpening steel, carefully wash by hand with warm water and mild soap; rinse and dry completely with a soft towel. Do not place in dishwasher or submerge for long periods of time

MERCER CULINARY GENESIS SERIES: Never stop experimenting in the kitchen; this Genesis Honing Steel is essential in every kitchen to keep your knives in peak condition

Mercer Culinary Double Diamond Manual Knife Sharpener

MERCER CULINARY
M10200
8.00 X 3.00 X 4.00 Inches
0.45 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Made with 100% diamond abrasives

For use with straight edge and serrated knives

Comfortable textured handle for a secure hold

Two stages, sharpening and honing, provide an arch-shaped edge that is strong and durable

Patented precision guides for accurate control of the sharpening angle and fool proof results

Mercer Culinary German Honing Steel, 12 Inch

MERCER CULINARY
M14512
17.00 X 2.00 X 2.00 Inches
0.75 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Made with German steel

Black polypropylene handle with ring

12" German sharpening steel

Cutlery sharpener

Mercer Culinary Ceramic Rod Knife Honing Steel, 12 Inch

MERCER CULINARY
M14412
19.13 X 4.50 X 1.13 Inches
0.50 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Mercer Cutlery - M14412 - 12 in Ceramic Knife Sharpener

12 in Ceramic Knife Sharpener

Mercer Cutlery

M14412

Black polypropylene handle with ring

Mercer Culinary German Honing Steel, 10 Inch

MERCER CULINARY
M14510
15.00 X 2.00 X 2.00 Inches
0.65 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Made with German steel

Black polypropylene handle with ring

Limited lifetime warranty

10" German sharpening steel

Cutlery sharpener

Mercer Culinary Diamond Honing Steel, 12 Inch

MERCER CULINARY
M15912
17.00 X 2.00 X 2.00 Inches
0.10 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Diamond abrasives

Polypropylene handle

Limited lifetime warranty

Made in the USA

General blade honing

Mercer Culinary Ceramic Rod Knife Honing Steel,Black/White 10 Inch

MERCER CULINARY
M14410
17.25 X 4.50 X 1.13 Inches
1.50 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Super strong ceramics for durability

Ergonomic nylon handle with hand guard

Aligns the knife edge as it sharpens

Perfect for high carbon knives

Designed to quickly sharpen all your standard kitchen and household cutlery

Mercer Culinary Mercer Guides Sharpening Angle Guide

MERCER CULINARY
M15950
5.00 X 1.00 X 1.00 Inches
0.09 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Easiest and most accurate sharpening guide available

Ceramic inserts for longevity

For use with chef knives 6" and larger

Designed to train users to hold a knife at the correct angle while sharpening

Size 4" x 3/4"

Mercer Culinary Triple Diamond 3 Stage Sharpener

MERCER CULINARY
M10000
12.00 X 6.25 X 6.38 Inches
0.28 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Diamond abrasives for longevity of knife

Three stage sharpening

Polymer strapping stage

Made in USA with US and Globally Sourced Material

NSF approved

Mercer Culinary-M15910 Diamond Honing Steel, 10 Inch,Black

MERCER CULINARY
M15910
15.00 X 2.00 X 2.00 Inches
0.25 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Diamond abrasives

Polypropylene handle

Limited lifetime warranty

Made in the USA

General blade honing

Mercer Culinary Keychain Dual Sharpener, Plastic, Gray 2-Inch

MERCER CULINARY
M15940
4.72 X 4.72 X 1.18 Inches
0.08 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Tungsten steel for coarse sharpening and ceramic rods for fine sharpening

Textured surface for better grip

Can be hung on a key chain

Convenient size for quick sharpening

Mercer Culinary 3 Stone Sharpening System

MERCER CULINARY
M15930
13.25 X 4.00 X 6.00 Inches
1.54 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Made in USA with US and Globally Sourced Material

Includes fine aluminum oxide stone, medium, and coarse silicon carbide stones.

Angle guides for ideal sharpening angle

Heavy-duty ABS case

Includes one bottle of premium honing oil

Mercer Culinary Honing Oil, 16 Oz

MERCER CULINARY
M15934
1.00 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Honing Oil, 16 Oz

Top 10 sharpeners Brands on Amazon

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

Brand Count
Mercer Culinary 13

Top 10 sharpeners Brands Pie Chart


We've carried out a comprehensive analysis of 3,138 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 $57.06, with top brands including and

Our team of expert editors reviewed these high-quality items and handpicked the top 13 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.