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Diamond File

Maybe

Returns run at only 1.0% of orders. But demand is soft, at -9.0% this quarter, so Diamond File is a Maybe.

Flapen Score
56
56 / 100
Top 17% of 9,536 Tools & Home Improvement niches · +8 vs the category median of 48
Market size
$119K/yr109K searches / yr
90-day growth
-9.0%search demand this quarter
Competition
52%top-5 click share · 27 brands · 69 sellers

Flapen Score

Diamond File against its category

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

56Maybe
Big MarketTrendingHigh ConversionOpen MarketLow ReturnsPrice rangeAvg priceNo Dominant BrandLow Review BarrierQuality Gap
This niche Category average

Market

The Diamond File market on Amazon at a glance

Shoppers on Amazon United States searched for Diamond File 109K times last year and spent an estimated $119K. The top 5 brands take 53% of clicks. Flapen scores it 56 out of 100, a Maybe.

01 · Demand

6.1% of searches ended in a purchase last week.

Shoppers searched for this 109K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. In the latest week, 6.1% of those searches ended in a purchase. Searches in the last 90 days moved -9.0% against the 90 days before. Searches, conversion and average price together put the market at an estimated $119K a year.

Searches, last 12 months
109K
Growth, 90 days vs prior 90
-9.0%
Conversion, latest week
6.1%
Market size, estimated
$119Ka year
Peak month
January1.3× the quietest month
Top search term
diamond file44K searches a year

02 · Price

A sale here is worth $17.88.

Listings sell for $17.88 on average, from $6.23 to $45.70. Amazon reports units sold in ranges. This niche sold 6K to 8K a year. The average listing sells 100 to 250 of them. At $17.88 that is $2K to $4K a year per listing.

Average price
$17.88inside the $15 to $100 sweet spot
Price range
$6.23–$45.70
Amazon United States median price
$24.38across 115,062 niches
Units sold a year
6K–8K
Units per listing a year
100–250
Revenue per listing a year
$2K–$4K
Returns
1.0%of orders · Amazon United States median 2.1%

03 · Entry bar

The bar here is low.

77% of listings pay for placement with sponsored ads. 100% ship with Prime. On an average day, 0.4% of listings are out of stock. The average listing ranks #97 within Files & Rasps. It carries 856 reviews at 4.46 stars, so a new listing needs social proof before a better product.

Sponsored listings
77%
Prime listings
100%
Out of stock, average day
0.4%
Average rank
#97in Files & Rasps
Average rating
4.46 starsAmazon United States average 4.42 stars
Average reviews
856per listing
Listings tracked
31

04 · Newcomers

Amazon counts 0 of last year's 2 launches as successful.

2 products launched here in the last 12 months. Amazon counts 0 of them as successful launches, new products that hit its first-year sales bar. The brands on the shelf have sold for 58 months on average, so the names here are settling in.

Launched, last 12 months
2
Successful launches
0Amazon's first-year sales bar
Average brand age
58 months

Products

Top Diamond File 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 52% of clicks. Leaders hold, but buyers still shop past them.

$0$5K$10K$14K$19K1101001K10K Review Count Sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

Brands

27 rising

Sellers

69

Top-5 brand share

53%

Top 20: 94%

Top-5 click share

52%

Top 20: 91%

Open market

40%

  • LIBRATON14%
  • YAKAMOZ13%
  • TARIST12%
  • SE8%
  • Saipe6%
  • SHARPAL6%

Demand

Diamond File search demand

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

2K2KSpike '25Black Friday '25SepDecMarJunAugNovMarMay

No pronounced peak months · busiest ÷ quietest = 1.3×

Search terms

Top Diamond File search terms shoppers use

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

  • diamond file44K/yr
  • diamond file set17K/yr
  • diamond files16K/yr
  • diamond files for metal8K/yr
  • diamond files for sharpening10K/yr
  • diamond needle file set7K/yr
  • diamond needle file4K/yr
  • diamond file for glass3K/yr

Reviews and returns

What reviews say buyers love and hate about Diamond File

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

24%of positive reviews mention “Quality-Overall”
19%of negative reviews mention “Quality-Overall”
1.0%of orders come back
“Cheap quality”
A buyer, on “Quality-Overall”19% 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.

15 topics

NegativePositive

FAQ

Common Diamond File questions

Answered from the same tracked data.