Diamond Sharpening Stones
Diamond Sharpening Stones shows low returns (0.6%), but soft demand (-18.5% this quarter) keeps it on the watch list.
Flapen Score
Is Diamond Sharpening Stones profitable on Amazon?
According to Flapen's Amazon United Kingdom niche tracking, Diamond Sharpening Stones is a £122K/yr Amazon United Kingdom market (118K searches/yr). The top 5 brands hold 83% of demand. Demand peaks in Jan–Feb–Nov–Dec. Verdict: Worth a look — 50/100.
Diamond Sharpening Stones: the Amazon niche in one read
Everything a seller checks before entering, in three answers.
Is the demand real?
Worth a look. Search demand moved -18.5% over the last 90 days and 4.2% of searches end in a purchase.
£122K
revenue / yr
Who owns the niche?
The top 5 brands hold 83% of demand, so 17% of the market is open.
17%
open market share
Is there a way in?
Listing quality. The average product page scores 0/100 on content standards. Incumbents average 4.5★ — the gap to enter on.
0/100
page quality · 35 products
Top Diamond Sharpening Stones products & what they sell for
Every tracked product — its share of the shelf, its review moat, and what it sells for.
Top sellers
by 90-day click share
SHARPAL 156N Diamond Whetstone Knife Sharpener with Storage Base 2 Side Grit Coarse 325 / Extra Fine 1200 Diamond Sharpening Stone with Non-Slip Base and Angle Guide (152 x 63mm)
- Price
- £34.61
- Rating
- 4.7/5
- Reviews
- 3,008
- Age
- 8y ago

SHARPAL 162N Diamond Whetstone Knife Sharpener with Storage Base | 2 Side Grit Coarse 325 / Extra Fine 1200 | Diamond Sharpening Stone | Non-Slip Base & Angle Guide (203 x 76mm / 8 x 3 Inch)
- Price
- £48.18
- Rating
- 4.7/5
- Reviews
- 3,864
- Age
- 7y ago

6 Pcs Diamond Sharpening Plates 120# 200# 600# 1200# 2000# 3000# Diamond Sharpening from Extra Coarse to Extra Fine Grit for Various Tools
- Price
- £13.74
- Rating
- 4.2/5
- Reviews
- 318
- Age
- 1y ago

SHARPAL 168H Large 8 x 3 Dual-Grit Diamond Sharpening Stone Coarse 325 & Extra-Fine 1000 Grit Monocrystalline Diamond Whetstone Professional Knife Sharpener with Anti-Slip Pad and Angle Guide
- Price
- £30.80
- Rating
- 4.6/5
- Reviews
- 485
- Age
- 1y ago

CWOVRS 5-Piece Diamond Sharpening Stones 200-2000# with Honeycomb Surface
- Price
- £14.90
- Rating
- 4.5/5
- Reviews
- 93
- Age
- 2y ago
Trending
90-day click momentum
SANTUO 5Pcs Diamond Sharpening Stone Set with Non-Slip Mat
- Price
- £10.91
- Rating
- 5.0/5
- Reviews
- 3
- Age
- 7mo ago

Diamond Sharpening Stone Kit 3 Side Grit 400/1000/8000 Knife Sharpener for Sharp Blade Premium Diamond & Ceramic Whetstone with Angle Guide Non-Slip Base & Leather Strop
- Price
- £32.99
- Rating
- 4.5/5
- Reviews
- 294
- Age
- 1y ago

Aolso Diamond Sharpening Stones 6 PCS Sharpening Stone Set Kit Professional Whetstone for Kitchen Knives & Garden Knives Durable Sharpening Stone 150/240/600/1000/2000/3000 Grit
- Price
- £8.74
- Rating
- 4.3/5
- Reviews
- 114
- Age
- 1y ago

SHARPAL 121N Dual-Grit Diamond Sharpening Stone Tool Sharpener for Sharpening Knife Garden Shears Axe and All Blade Edge
- Price
- £16.53
- Rating
- 4.4/5
- Reviews
- 3,199
- Age
- 6y ago

Aolso Diamond Sharpening Stones Double-Sided Diamond Bench Stone Professional Whetstone with Non-Slip Base Suitable for Kitchen Knives & Garden Knives 400/1000 Grit
- Price
- £8.96
- Rating
- 4.2/5
- Reviews
- 91
- Age
- 1y ago
Newest
by launch date
SANTUO 5Pcs Diamond Sharpening Stone Set with Non-Slip Mat
- Price
- £10.91
- Rating
- 5.0/5
- Reviews
- 3
- Age
- 7mo ago

SHARPAL 202H Precision Knife Sharpening System Adjustable 10-35 Angle
- Price
- £115.22
- Rating
- 4.8/5
- Reviews
- 433
- Age
- 10mo ago

SHARPAL 169H Large 8 x 3 Dual-Grit Diamond Sharpening Stone Extra-Coarse 220 & Fine 600 Grit Monocrystalline Diamond Whetstone Professional Knife Sharpener with Anti-Slip Pad and Angle Guide
- Price
- £31.11
- Rating
- 4.6/5
- Reviews
- 277
- Age
- 1y ago

SHARPAL 168H Large 8 x 3 Dual-Grit Diamond Sharpening Stone Coarse 325 & Extra-Fine 1000 Grit Monocrystalline Diamond Whetstone Professional Knife Sharpener with Anti-Slip Pad and Angle Guide
- Price
- £30.80
- Rating
- 4.6/5
- Reviews
- 485
- Age
- 1y ago

Diamond Sharpening Stone Kit 3 Side Grit 400/1000/8000 Knife Sharpener for Sharp Blade Premium Diamond & Ceramic Whetstone with Angle Guide Non-Slip Base & Leather Strop
- Price
- £32.99
- Rating
- 4.5/5
- Reviews
- 294
- Age
- 1y ago
Competition: brands, sellers & click share
The top 5 products take 44% of clicks — established leaders, but buyers still shop beyond them.
Brands
14 falling
Sellers
45
Top-5 brand share
83%
Top 20: 100%
Top-5 click share
44%
Top 20: 83%
Open market
14%
- SHARPAL54%
- Yuejizhe10%
- Faithfull8%
- CWOVRS6%
- Aolso5%
- S SATC3%
- Open — no brand owns it (8 brands, 14%)
Diamond Sharpening Stones demand & seasonality
Weekly search volume, with the niche's key stats alongside.
Peak months: Jan, Feb, Nov, Dec · busiest ÷ quietest = 1.9×
Top Diamond Sharpening Stones search terms shoppers use
The exact queries shoppers type, with yearly volume, growth and conversion.
- diamond sharpening stones36K/yr
- sharpal17K/yr
- diamond sharpening plate12K/yr
- diamond sharpening stone9K/yr
- diamond stone8K/yr
- sharpal knife sharpener11K/yr
- dmt diamond sharpening stone7K/yr
- sharpal diamond sharpening stone6K/yr
- diamond stones for sharpening5K/yr
- diamond sharpening4K/yr
What reviews say buyers love and hate about Diamond Sharpening Stones
What buyers mention most, as a share of all reviews.
What buyers love
84% of reviews“they are now very sharp”
“Stone set is good quality”
“Best for the money”
“Ease of use”
“efficient this is”
What buyers complain about
67% of reviews“Let down by quality of the carrier”
“Not fit for purpose”
“there is no way to sharpen scissors”
“wore out after a week”
“leaning on the expensive side which is why I dropped a star for reduced value for money”
Diamond Sharpening Stones return rate & reasons
Why buyers send it back, as a share of all return requests.
0.6%
Return rate
22%
Fixable by listing
The "fixable" share counts expectation-mismatch reasons — size, look, advertised-vs-actual — that better copy and images address.
Common Diamond Sharpening Stones questions
The questions sellers ask about this niche, answered from the tracked metrics.
Best Flapen score
The highest-scoring niches we track right now, across every category.








