---
title: "Black Diamond Grout Cleaner — $64K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/health-household/black-diamond-grout-cleaner"
last_updated: "2026-08-05T23:53:25.103Z"
locale: en
meta:
description: "Niche score 42/100 · $64K/yr market · 78K searches/yr · $14.31 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 42/100 · $64K/yr market · 78K searches/yr · $14.31 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Black Diamond Grout Cleaner — $64K/yr Amazon US Niche (2026) - Flapen"
---
# **black diamond grout cleaner**
**Skip it**
A small market ($64K/yr) — this niche doesn't clear our bar today.
Market size 16Growth 16Conversion 65Competition 35Returns 99Price range 58Avg price 69Brand share 32Review moat 23Quality gap 47
**Returns**
**Incredible****0.3%**
return rate — above 5% kills the launch gate
**Avg price**
**Good****$14.31**
avg listing price — sweet spot $15–$100
**Conversion**
**Good****5.8%**
search→purchase rate — share of searches ending in a sale
**Price range**
**Good****$4.43–$29.36**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Quality gap**
**Okay****4.5★**
avg incumbent rating — lower means beatable quality
**Competition**
**Okay****64%**
top-5 click share — leaders hold, buyers still browse
**Brand share**
**Okay****86%**
top-5 brand share — brands hold most of the demand
**Review moat**
**Bad****8,581.53**
avg incumbent reviews — the moat a new listing must climb
**Market size**
**Bad****$64K**
$64K/yr · 78K searches
**Growth**
**Bad****-18.4%**
90-day search growth — must beat 0% to launch
According to Flapen's Amazon United States niche tracking, black diamond grout cleaner is a $64K/yr Amazon United States market (78K searches/yr). The top 5 brands hold 86% of demand. Verdict: Skip it — 42/100.
Data updated Jul 21, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **black diamond grout cleaner market data**
- **Units sold / yr**
- **3K–4K**
- avg 100–250/product
- **Revenue / yr**
- **$43K–$57K**
- units × avg price
- **Conversion rate**
- **5.8%**
- **Avg BSR**
- **#77**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **76%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **64 months**
- **Avg seller age**
- **160 days**
## **Competition & brand share**
The top 5 products take 64% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**12 **▼falling
**Sellers**
**124**
**Top-5 brand share**
**86%**
Top 20: 100%
**Top-5 click share**
**64%**
Top 20: 100%
**Open market**
**10%**
- Black Diamond Stoneworks32% - Zep29% - Bona13% - AuraClean8% - Goo Gone4% - Stardrops4% - Open — no brand owns it (6 brands, 10%)
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -18.4% search growth over the last 90 days.
3K2KSpike '25Prime Day '25Spike '26 seasonSepDecMarJunAugNovMarMay
No pronounced peak months · busiest ÷ quietest = 1.5×
[**Open Trend **](https://flapen.com/research/us/health-household/black-diamond-grout-cleaner/trend)
## **Top black diamond grout cleaner search terms**
- **ceramic tile floor cleaner**12K/yr+15.8%3.4% conv. - **porcelain tile cleaner**15K/yr-3.6%5.4% conv. - **ceramic tile cleaner**12K/yr-10.9%5.1% conv. - **porcelain floor cleaner**6K/yr+1.2%8.4% conv. - **porcelain tile floor cleaner**3K/yr+0.0%8.8% conv. - **best cleaner for ceramic tile floors**3K/yr-15.9%2.0% conv. - **tile cleaning solution**3K/yr-27.1%4.6% conv. - **ceramic floor tile cleaner**3K/yr-32.6%7.7% conv. - **best floor cleaner for ceramic tile**2K/yr+5.0%2.9% conv. - **best floor tile cleaner**6K/yr-54.5%1.1% conv. [**All search terms **](https://flapen.com/research/us/health-household/black-diamond-grout-cleaner/search-terms)
## **Top black diamond grout cleaner 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%10%$6K20%$13K30%$19K40%$26K1001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 17 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Zep Luxury Vinyl Ceramic and Porcelain Floor Cleaner - 64 oz. ZULVCP64 Safe for Grout Pro Formula**Zep**$9.16**4.6★558 rev](https://www.amazon.com/dp/B0CKY2FWRR) [2**Black Diamond Stoneworks MARBLE & TILE FLOOR CLEANER. Great for Ceramic Porcelain Granite Natural Stone Vinyl and Brick. No-rinse Concentrate.(1-Gallon)**Black Diamond Stoneworks**$29.36**4.3★5,915 rev](https://www.amazon.com/dp/B00J75IU6A) [3**Black Diamond Stoneworks Marble & Tile Floor Cleaner Concentrate pH Neutral Streak-Free & No-Rinse Formula for Granite Travertine Limestone Slate Ceramic & Porcelain Floors (1 Quart)**Black Diamond Stoneworks**$14.85**4.3★5,915 rev](https://www.amazon.com/dp/B002LGUO5M) [4**AuraClean Porcelain & Ceramic Tile Floor Cleaner - Mop Soap Concentrate for mopping - Streak-Free Clean Ph Neutral and non-Toxic - Safe for Marble Travertine Limestone - 32 fl oz (1-qt)**AuraClean**$17.75**4.4★133 rev](https://www.amazon.com/dp/B0DP3PFXM5) [5**Zep Neutral PH Industrial Floor Cleaner - 1 Gallon - ZUNEUT128 - Concentrated Pro Trusted All-Purpose Floor Cleaner**Zep**$13.25**4.6★7,792 rev](https://www.amazon.com/dp/B00360DG9S)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**AuraClean Porcelain & Ceramic Tile Floor Cleaner - Mop Soap Concentrate for mopping - Streak-Free Clean Ph Neutral and non-Toxic - Safe for Marble Travertine Limestone - 32 fl oz (1-qt)**AuraClean**$17.75**133 rev1y ago](https://www.amazon.com/dp/B0DP3PFXM5) [**Mr. Clean 2X Concentrated Multi Surface Cleaner with Unstopables Fresh Scent 41 fl oz**Mr. Clean**$5.47**9,251 rev2y ago](https://www.amazon.com/dp/B0CP4GGRXF) [**Zep Luxury Vinyl Ceramic and Porcelain Floor Cleaner - 64 oz. ZULVCP64 Safe for Grout Pro Formula**Zep**$9.16**558 rev2y ago](https://www.amazon.com/dp/B0CKY2FWRR) [**Stardrops - The Pink Stuff - The Miracle All Purpose Floor Cleaner 33.8fl oz**Stardrops**$6.92**9,384 rev2y ago](https://www.amazon.com/dp/B0B4ZJR3DL) [**Bona Multi-Surface Floor Cleaner Refill - 128 fl oz - Lemon Mint - Residue-Free Floor Cleaning Solution refill for Spray Mop and Spray Bottles - For Use on Stone Tile Laminate and Vinyl Floors**Bona**$19.23**29,452 rev2y ago](https://www.amazon.com/dp/B0CH2ZPYYP)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Bona Multi-Surface Floor Cleaner Refill - 128 fl oz - Lemon Mint - Residue-Free Floor Cleaning Solution refill for Spray Mop and Spray Bottles - For Use on Stone Tile Laminate and Vinyl Floors**Bona**$19.23**4.7★**▲ 69%**](https://www.amazon.com/dp/B0CH2ZPYYP) [**Black Diamond Stoneworks Marble & Tile Floor Cleaner Concentrate pH Neutral Streak-Free & No-Rinse Formula for Granite Travertine Limestone Slate Ceramic & Porcelain Floors (1 Quart)**Black Diamond Stoneworks**$14.85**4.3★**▲ 25%**](https://www.amazon.com/dp/B002LGUO5M) [**Bona Multi-Surface Floor Cleaner Spray - 32 fl oz - Unscented - Refillable - Residue-Free Floor Cleaning Solution for Stone Tile Laminate and Vinyl Floors**Bona**$8.82**4.7★**▲ 15%**](https://www.amazon.com/dp/B000CNRVP2) [**Stardrops - The Pink Stuff - The Miracle All Purpose Floor Cleaner 33.8fl oz**Stardrops**$6.92**4.5★**▲ 12%**](https://www.amazon.com/dp/B0B4ZJR3DL) [**Zep Luxury Vinyl Ceramic and Porcelain Floor Cleaner - 64 oz. ZULVCP64 Safe for Grout Pro Formula**Zep**$9.16**4.6★**▲ 11%**](https://www.amazon.com/dp/B0CKY2FWRR)
**~~View all trending →~~**
## **What buyers say about black diamond grout cleaner**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Ease Of Cleaning**31%
*“Cleans great”*
**Smell**28%
*“Awesome smell”*
**Quality-Overall**7%
*“Quality of toys product is amazing”*
**Efficiency**6%
*“Very effective”*
**Value For Money**5%
*“Great price”*
**Ease Of Use**4%
*“Easy to use”*
**Brightness/Shine/Glow**2%
*“great shine”*
**Cleansing**2%
*“it cleans very well”*
**Advertised Vs Actual Product**2%
*“as advertised”*
**Color**1%
*“Pink is great”*
### **What buyers complain about **
**Smell**19%
*“smell too strong”*
**Ease Of Cleaning**16%
*“very difficult to clean”*
**Functionality-Overall**14%
*“Doesn't work well”*
**Value For Money**7%
*“a bit overpriced”*
**Leak-Proof**3%
*“Leaked through box”*
**Advertised Vs Actual Product**3%
*“Misleading advertisement for this product”*
**Adhesion/Stickiness**3%
*“Sticky floors”*
**Color**2%
*“the grout was dark brown”*
**Brightness/Shine/Glow**2%
*“the tile grout is not truly brighten or back to its original color”*
**Stain Resistance**2%
*“did not really pick up tough stains”*
### **Top return reasons **
**Leak-Proof**18%
**Advertised Vs Actual Product**15%
**Smell**10%
**Functionality-Overall**10%
**Wet Cleaning**7%
**Value For Money**7%
**Cleaning Modes**6%
**Ease Of Cleaning**4%
**Size-Overall**3%
**Compatibility-Overall**3%
## **Common questions**
- **Is black diamond grout cleaner profitable to sell on Amazon United States?**
- The niche generates $64K/yr across 17 tracked products. 90-day search growth is -18.4%. Flapen's verdict: Skip it (42/100).
- **How competitive is the black diamond grout cleaner niche?**
- 12 brands and 124 sellers compete. The top 5 products take 64% of clicks and top 5 brands hold 86% of demand.
- **What do buyers complain about in black diamond grout cleaner?**
- Top complaints mined from reviews: Smell, Ease Of Cleaning, Functionality-Overall. The return rate is 0.3%.
- **When does demand for black diamond grout cleaner peak?**
- Demand is steady year-round — the busiest month runs 1.5× the quietest.
- **What does it cost to enter the black diamond grout cleaner niche?**
- Listings span $4.43–$29.36; the average listing price is $14.31 (sweet spot $15–$100). The average incumbent carries 8,582 reviews — the moat a new listing must climb.
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