---
title: "ディアナsc — ¥2.5M/yr Amazon JP Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/jp/diy/sc"
last_updated: "2026-08-07T09:49:53.587Z"
locale: en
meta:
description: "Niche score 59/100 · ¥2.5M/yr market · 7K searches/yr · ¥10733.85 avg price. Clears our launch bar. Data updated Jul 2026."
"og:description": "Niche score 59/100 · ¥2.5M/yr market · 7K searches/yr · ¥10733.85 avg price. Clears our launch bar. Data updated Jul 2026."
"og:title": "ディアナsc — ¥2.5M/yr Amazon JP Niche (2026) - Flapen"
---
# **ディアナsc**
**Launch it**
A $2.5M/yr market growing +155.1% this quarter with returns at 0.2% — clears our launch bar.
Market size 95Growth 96Conversion 41Competition 12Returns 99Price range 0Avg price 0Brand share 0Review moat 94Quality gap 96
**Returns**
**Incredible****0.2%**
return rate — above 5% kills the launch gate
**Growth**
**Incredible****+155.1%**
90-day search growth — must beat 0% to launch
**Quality gap**
**Incredible****4.0★**
avg incumbent rating — lower means beatable quality
**Market size**
**Incredible****¥2.5M**
¥2.5M/yr · 7K searches
**Review moat**
**Great****117.1**
avg incumbent reviews — the moat a new listing must climb
**Conversion**
**Okay****3.3%**
search→purchase rate — share of searches ending in a sale
**Competition**
**Bad****86%**
top-5 click share — a locked-up shelf
**Brand share**
**Bad****100%**
top-5 brand share — brand-locked demand
**Avg price**
**Bad****¥10733.85**
avg listing price — sweet spot $15–$100
**Price range**
**Bad****¥1074.50–¥16730.40**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Signals**[** Trending**](https://flapen.com/research/niches?market=jp&signal=trending "Search growth > 100% (90d)") [** Low Review Barrier**](https://flapen.com/research/niches?market=jp&signal=low_review_barrier "Top brand's reviews < 500") [** Quality Gap**](https://flapen.com/research/niches?market=jp&signal=quality_gap "Avg rating < 4.0") [** High Price**](https://flapen.com/research/niches?market=jp&signal=high_price "Avg price > $50") [** Out of Stock**](https://flapen.com/research/niches?market=jp&signal=out_of_stock "OOS rate > 10%")
According to Flapen's Amazon Japan niche tracking, ディアナsc is a ¥2.5M/yr Amazon Japan market (7K searches/yr). The top 5 brands hold 100% of demand. Verdict: Launch it — 59/100.
Data updated Jul 30, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **ディアナsc market data**
- **Units sold / yr**
- **250–500**
- avg 0–100/product
- **Revenue / yr**
- **¥2.7M–¥5.4M**
- units × avg price
- **Conversion rate**
- **3.3%**
- **Avg BSR**
- **#676**
- **Page quality**
- **0%**
- **Prime**
- **90%**
- **Sponsored**
- **60%**
- **Out of stock**
- **7.7%**
- **Avg brand age**
- **69 months**
- **Avg seller age**
- **204 days**
## **Competition & brand share**
The top 5 products capture 86% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**4 **▲rising
**Sellers**
**14**
**Top-5 brand share**
**100%**
Top 20: 100%
**Top-5 click share**
**86%**
Top 20: 100%
**Open market**
**0%**
- 住友化学園芸58% - DIANA(ダイアナ)31% - 農業屋6% - Sumitomo Chemical India Ltd5%
## **Demand**
Weekly Amazon search volume, last 34 weeks — +155.1% search growth over the last 90 days.
350250Holiday '25Spike '26Dec '25Jan '26Feb '26Mar '26Apr '26May '26Jul '26
[**Open Trend **](https://flapen.com/research/jp/diy/sc/trend)
## **Top ディアナsc products on Amazon**
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
0%15%¥372K30%¥745K45%¥1.1M60%¥1.5M1101001K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 10 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**住友化学 殺虫剤 ディアナSC 100ml**住友化学園芸**¥3361.62**4.4★74 rev](https://www.amazon.co.jp/dp/B01DIQW6Q8) [2![[ダイアナ] パンプス 日本製 黒 ブラック 23.0cm 180283100010](https://m.media-amazon.com/images/I/31QL1J6vGAL.jpg)**\[ダイアナ\] パンプス 日本製 黒 ブラック 23.0cm 180283100010**DIANA(ダイアナ)**¥15886.49**4.6★12 rev](https://www.amazon.co.jp/dp/B0BV5NBXNL) [3**住友化学 殺虫剤 ダントツ水溶剤 125g**農業屋**¥1600.78**4.3★873 rev](https://www.amazon.co.jp/dp/B01DNW0682) [4![[ダイアナ] パンプス 日本製 黒 ブラック 22.5cm 184763600009](https://m.media-amazon.com/images/I/31khh6FHLlL.jpg)**\[ダイアナ\] パンプス 日本製 黒 ブラック 22.5cm 184763600009**DIANA(ダイアナ)**¥16730.40**4.6★11 rev](https://www.amazon.co.jp/dp/B0C6WWKTSH) [5**住友化学 殺虫剤 ディアナWDG 100g**Sumitomo Chemical India Ltd**¥5352.56**3.5★7 rev](https://www.amazon.co.jp/dp/B07BWPHC72)
**~~View all top sellers →~~**
### **Newest**
by launch date
[![[ダイアナ] パンプス 日本製 黒 ブラック 23.0cm 181214600010](https://m.media-amazon.com/images/I/31k79Ofk6nL.jpg)**\[ダイアナ\] パンプス 日本製 黒 ブラック 23.0cm 181214600010**DIANA(ダイアナ)**¥16141.65**1 rev1y ago](https://www.amazon.co.jp/dp/B0DCMMXNNZ) [![[ダイアナ] パンプス 日本製 黒 ブラック 22.5cm 180104600009](https://m.media-amazon.com/images/I/31stF33AxcL.jpg)**\[ダイアナ\] パンプス 日本製 黒 ブラック 22.5cm 180104600009**DIANA(ダイアナ)**¥15074.81**6 rev2y ago](https://www.amazon.co.jp/dp/B0D7GQMM5P) [![[ダイアナ] パンプス 日本製 黒 ブラック 22.5cm 184763600009](https://m.media-amazon.com/images/I/31khh6FHLlL.jpg)**\[ダイアナ\] パンプス 日本製 黒 ブラック 22.5cm 184763600009**DIANA(ダイアナ)**¥16730.40**11 rev3y ago](https://www.amazon.co.jp/dp/B0C6WWKTSH) [![[ダイアナ] パンプス 日本製 黒 ブラック 23.5cm 184763600011](https://m.media-amazon.com/images/I/31khh6FHLlL.jpg)**\[ダイアナ\] パンプス 日本製 黒 ブラック 23.5cm 184763600011**DIANA(ダイアナ)**¥16616.85**11 rev3y ago](https://www.amazon.co.jp/dp/B0C6X5G68V) [![[ダイアナ] パンプス 日本製 黒 ブラック 23.0cm 180283100010](https://m.media-amazon.com/images/I/31QL1J6vGAL.jpg)**\[ダイアナ\] パンプス 日本製 黒 ブラック 23.0cm 180283100010**DIANA(ダイアナ)**¥15886.49**12 rev3y ago](https://www.amazon.co.jp/dp/B0BV5NBXNL)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[![[ダイアナ] パンプス 日本製 黒 ブラック 22.5cm 184763600009](https://m.media-amazon.com/images/I/31khh6FHLlL.jpg)**\[ダイアナ\] パンプス 日本製 黒 ブラック 22.5cm 184763600009**DIANA(ダイアナ)**¥16730.40**4.6★**▲ 121%**](https://www.amazon.co.jp/dp/B0C6WWKTSH) [![[ダイアナ] パンプス 日本製 黒 ブラック 22.5cm 184422600009](https://m.media-amazon.com/images/I/31lZ5HtEpxL.jpg)**\[ダイアナ\] パンプス 日本製 黒 ブラック 22.5cm 184422600009**DIANA(ダイアナ)**¥15498.88**4.1★**▲ 101%**](https://www.amazon.co.jp/dp/B0B27CT8V5) [![[ダイアナ] パンプス 日本製 黒 ブラック 23.5cm 184763600011](https://m.media-amazon.com/images/I/31khh6FHLlL.jpg)**\[ダイアナ\] パンプス 日本製 黒 ブラック 23.5cm 184763600011**DIANA(ダイアナ)**¥16616.85**4.6★**▲ 86%**](https://www.amazon.co.jp/dp/B0C6X5G68V) [![[ダイアナ] パンプス 日本製 黒 ブラック 23.0cm 181214600010](https://m.media-amazon.com/images/I/31k79Ofk6nL.jpg)**\[ダイアナ\] パンプス 日本製 黒 ブラック 23.0cm 181214600010**DIANA(ダイアナ)**¥16141.65**2.0★**▲ 81%**](https://www.amazon.co.jp/dp/B0DCMMXNNZ) [![[ダイアナ] パンプス 日本製 黒 ブラック 22.5cm 180104600009](https://m.media-amazon.com/images/I/31stF33AxcL.jpg)**\[ダイアナ\] パンプス 日本製 黒 ブラック 22.5cm 180104600009**DIANA(ダイアナ)**¥15074.81**3.4★**▲ 66%**](https://www.amazon.co.jp/dp/B0D7GQMM5P)
**~~View all trending →~~**
## **What buyers say about ディアナsc**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**広告と実際の製品の違い**17%
*“効果を信じて・・ まだ未使用ですが、メーカー説明及びレビューを信じ、そして効果が出るよう願い使用します。”*
**総合品質**17%
*“全く問題なし。 安定の品質です”*
**コストパフォーマンス**17%
*“コスパ良し”*
**匂い**17%
*“ダントツ水溶剤は無臭の粒剤です。”*
**デザイン全体**8%
*“デザインも良くスタイル良く見える”*
**使用の容易さ**6%
*“取り出す時や希釈する時に水和剤のように飛び散らず扱いやすい”*
**強さ**6%
*“効果も強くて希釈倍率が高いのも良い。”*
**効率**6%
*“効果も強くて希釈倍率が高いのも良い。”*
### **What buyers complain about **
**快適さ-全体**50%
*“長時間は履いていられない”*
### **Top return reasons **
**機能全体**50%
**サイズ全体**50%
## **Common questions**
- **Is ディアナsc profitable to sell on Amazon Japan?**
- The niche generates ¥2.5M/yr across 10 tracked products. 90-day search growth is +155.1%. Flapen's verdict: Launch it (59/100).
- **How competitive is the ディアナsc niche?**
- 4 brands and 14 sellers compete. The top 5 products take 86% of clicks and top 5 brands hold 100% of demand.
- **What do buyers complain about in ディアナsc?**
- Top complaints mined from reviews: 快適さ-全体. The return rate is 0.2%.
- **What does it cost to enter the ディアナsc niche?**
- Listings span ¥1074.50–¥16730.40; the average listing price is ¥10733.85 (sweet spot $15–$100). The average incumbent carries 117 reviews — the moat a new listing must climb.
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