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Diamond Knife Sharpener

Maybe

Products sell for $42.32 on average, inside the sweet spot. But demand is soft, at -0.4% this quarter, so Diamond Knife Sharpener is a Maybe.

Flapen Score
57
57 / 100
Top 15% of 9,536 Tools & Home Improvement niches · +9 vs the category median of 48
Market size
$298K/yr197K searches / yr
90-day growth
-0.4%search demand this quarter
Competition
28%top-5 click share · 26 brands · 129 sellers

Flapen Score

Diamond Knife Sharpener against its category

The dotted line is the Tools & Home Improvement average. Past it, Diamond Knife Sharpener is stronger. Inside it, weaker.

57Maybe
Big MarketTrendingHigh ConversionOpen MarketLow ReturnsPrice rangeAvg priceNo Dominant BrandLow Review BarrierQuality Gap
This niche Category average

Market

The Diamond Knife Sharpener market on Amazon at a glance

Shoppers on Amazon United States searched for Diamond Knife Sharpener 197K times last year and spent an estimated $298K. The top 5 brands take 71% of clicks. Demand peaks in Dec. Flapen scores it 57 out of 100, a Maybe.

01 · Demand

3.6% of searches ended in a purchase last week.

Shoppers searched for this 197K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. In the latest week, 3.6% of those searches ended in a purchase. Searches in the last 90 days moved -0.4% against the 90 days before. Searches, conversion and average price together put the market at an estimated $298K a year.

Searches, last 12 months
197K
Growth, 90 days vs prior 90
-0.4%
Conversion, latest week
3.6%
Market size, estimated
$298Ka year
Peak month
December2.0× the quietest month
Top search term
diamond knife sharpener70K searches a year

02 · Price

A sale here is worth $42.32.

Listings sell for $42.32 on average, from $6.39 to $146.76. Amazon reports units sold in ranges. This niche sold 6K to 8K a year. The average listing sells 0 to 100 of them. At $42.32 that is $0 to $4K a year per listing.

Average price
$42.32inside the $15 to $100 sweet spot
Price range
$6.39–$146.76
Amazon United States median price
$24.38across 115,062 niches
Units sold a year
6K–8K
Units per listing a year
0–100
Revenue per listing a year
$0–$4K
Returns
1.8%of orders · Amazon United States median 2.1%

03 · Entry bar

The bar here is reviews.

73% of listings pay for placement with sponsored ads. 100% ship with Prime. On an average day, 0.0% of listings are out of stock. The average listing ranks #685 within Sharpening Stones. It carries 1,980 reviews at 4.50 stars, so a new listing needs social proof before a better product.

Sponsored listings
73%
Prime listings
100%
Out of stock, average day
0.0%
Average rank
#685in Sharpening Stones
Average rating
4.50 starsAmazon United States average 4.42 stars
Average reviews
1,980per listing
Listings tracked
63

04 · Newcomers

Amazon counts 3 of last year's 3 launches as successful.

3 products launched here in the last 12 months. Amazon counts 3 of them as successful launches, new products that hit its first-year sales bar. The brands on the shelf have sold for 51 months on average, so the names here are settling in.

Launched, last 12 months
3
Successful launches
3Amazon's first-year sales bar
Average brand age
51 months

Products

Top Diamond Knife Sharpener products & what they sell for

Every tracked product: its share of the shelf, its reviews, and its price.

Competition

Competition: brands, sellers & click share

The top 5 products take only 28% of clicks. An open shelf where new products get seen.

$0$6K$12K$18K$24K101001K10K100K Review Count Sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

Brands

26 rising

Sellers

129

Top-5 brand share

71%

Top 20: 97%

Top-5 click share

28%

Top 20: 67%

Open market

25%

  • DMT (Diamond Machining Technology)44%
  • SHARPAL9%
  • EZE-LAP8%
  • Smith's5%
  • XILEWHZF5%
  • Kota Japan4%

Demand

Diamond Knife Sharpener search demand

Weekly searches over the year, seasonality beneath. Pick a range.

7K5KHoliday '24Prime Day '25Spike '25Black Friday '25Spike '26SepDecMarJunAugNovMarMay

Peak months: Dec · busiest ÷ quietest = 2.0×

Search terms

Top Diamond Knife Sharpener search terms shoppers use

The exact words shoppers type, with yearly volume, growth, and conversion.

  • diamond knife sharpener70K/yr
  • dmt diamond sharpening stone47K/yr
  • diamond sharpener24K/yr
  • knife sharpener diamond10K/yr
  • dmt knife sharpener9K/yr
  • diamond hone8K/yr
  • eze lap diamond stone9K/yr
  • dmt sharpening stone8K/yr
  • eze lap diamond sharpener3K/yr
  • eze-lap2K/yr

Reviews and returns

What reviews say buyers love and hate about Diamond Knife Sharpener

We read the reviews and the return reasons for every product selling here.

31%of positive reviews mention “Sharpness”
21%of negative reviews mention “Sharpness”
1.8%of orders come back
“Not very sharp”
A buyer, on “Sharpness”21% of negative reviews mention the same topic

Every topic

Every topic buyers talk about, one row each.

Red shows the share of negative reviews and green the share of positive reviews, biggest topic first. Open a row to read what they wrote.

16 topics

NegativePositive

FAQ

Common Diamond Knife Sharpener questions

Answered from the same tracked data.