---
title: "Diamond — £28K/yr Amazon UK Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/uk/beauty/diamond"
last_updated: "2026-08-09T17:12:12.141Z"
locale: en
meta:
description: "Niche score 42/100 · £28K/yr market · 91K searches/yr · £34.64 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 42/100 · £28K/yr market · 91K searches/yr · £34.64 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Diamond — £28K/yr Amazon UK Niche (2026) - Flapen"
---
# **diamond**
**Skip it**
A small market ($28K/yr) — this niche doesn't clear our bar today.
Market size 7Growth 20Conversion 11Competition 32Returns 89Price range 49Avg price 95Brand share 63Review moat 82Quality gap 60
**Avg price**
**Incredible****£34.64**
avg listing price — sweet spot $15–$100
**Returns**
**Great****1.3%**
return rate — above 5% kills the launch gate
**Review moat**
**Great****356**
avg incumbent reviews — the moat a new listing must climb
**Brand share**
**Good****67%**
top-5 brand share — brands hold most of the demand
**Quality gap**
**Good****4.4★**
avg incumbent rating — lower means beatable quality
**Price range**
**Okay****£3.72–£178.75**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Competition**
**Okay****66%**
top-5 click share — leaders hold, buyers still browse
**Growth**
**Bad****-10.5%**
90-day search growth — must beat 0% to launch
**Conversion**
**Bad****0.9%**
search→purchase rate — share of searches ending in a sale
**Market size**
**Bad****£28K**
£28K/yr · 91K searches
According to Flapen's Amazon United Kingdom niche tracking, diamond is a £28K/yr Amazon United Kingdom market (91K searches/yr). The top 5 brands hold 67% of demand. Demand peaks in Dec. Verdict: Skip it — 42/100.
Data updated Jul 21, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **diamond market data**
- **Units sold / yr**
- **1K–1K**
- avg 0–100/product
- **Revenue / yr**
- **£35K–£43K**
- units × avg price
- **Conversion rate**
- **0.9%**
- **Avg BSR**
- **#2,992**
- **Page quality**
- **0%**
- **Prime**
- **94%**
- **Sponsored**
- **94%**
- **Out of stock**
- **7.0%**
- **Avg brand age**
- **34 months**
- **Avg seller age**
- **179 days**
## **Competition & brand share**
The top 5 products take 66% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**15 **▼falling
**Sellers**
**18**
**Top-5 brand share**
**67%**
Top 20: 100%
**Top-5 click share**
**66%**
Top 20: 100%
**Open market**
**28%**
- MomentWish26% - HERZWILD18% - Ecripe9% - GZGXKJ8% - XWCHASA6% - CANVALITE5%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -10.5% search growth over the last 90 days.
2K2KSpike '24Black Friday '24Holiday '24Spike '25 seasonSepDecMarJunAugNovMarMay
Peak months: Dec · busiest ÷ quietest = 1.4×
[**Open Trend **](https://flapen.com/research/uk/beauty/diamond/trend)
## **Top diamond search terms**
- **diamond**45K/yr-12.5%0.3% conv. - **diamonds**25K/yr-1.3%0.4% conv. - **dimond**6K/yr-15.8%0.1% conv. - **diamon**5K/yr-27.7%0.0% conv. - **real diamond**4K/yr-16.0%0.0% conv. - **fake diamonds**4K/yr-16.7%2.2% conv. - **dimonds**3K/yr+0.7%0.9% conv. [**All search terms **](https://flapen.com/research/uk/beauty/diamond/search-terms)
## **Top diamond 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%£3K20%£6K30%£9K40%£11K101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)1 product missing review or click data not plotted
All 16 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**MomentWish Womens Necklaces Heart 1 Carat Moissanite Necklace For Women Pendant Silver 925 Wife Mum Birthday Anniversary Jewellery Gifts**MomentWish**£82.14**4.5★457 rev](https://www.amazon.co.uk/dp/B0BPCWTY6L) [2**HERZWILD Decorative Diamond Crystals Approx. 1100 Pieces Colourless Sparkling Diamond Crystals Confetti Decorative Stones Crystals Diamonds (10 mm)**HERZWILD**£6.49**4.5★137 rev](https://www.amazon.co.uk/dp/B093KK3CGT) [3**Ecripe Moissanite Round Cut D Color VVS1 Created Diamond Earrings 925 Sterling Silver Stud Earrings Hypoallergenic Brilliant Round Cut Earring Moissanite Jewelry 3-7MM (7mm/1.25ct)**Ecripe**£27.79**4.4★14 rev](https://www.amazon.co.uk/dp/B0GSZ9JZFJ) [4**GZGZKJ 10Pcs Bright Crystals Diamonds Gemstones Wedding Crystal Diamond Paperweight Jewels Wedding Decorations Christmas Centerpieces Home Decor (Clear)**GZGXKJ**£4.80**4.4★176 rev](https://www.amazon.co.uk/dp/B09633TQYS) [5**10Pcs 40mm Big Size Kids Diamond Gemstones Acrylic Diamond Gems Large Jewels Large Pirate Treasure Chest Hunt Toy Children Gemstones Crystals for Pirate Treasure Hunt Diving Teaching (No Chest)**XWCHASA**£5.77**3.8★103 rev](https://www.amazon.co.uk/dp/B0BZR921ZN)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Ecripe Moissanite Round Cut D Color VVS1 Created Diamond Earrings 925 Sterling Silver Stud Earrings Hypoallergenic Brilliant Round Cut Earring Moissanite Jewelry 3-7MM (7mm/1.25ct)**Ecripe**£27.79**14 rev4mo ago](https://www.amazon.co.uk/dp/B0GSZ9JZFJ) [**ONLYDIAMONDS Diamond Studs in 18K White Gold 0.20-1.00cttw Womens Earrings Mens Sparkling Earrings Solitaire for her/him Real Diamond Jewellery Luxury with Gift Box (0.20CTW)**Only Diamonds London**£178.75**11 rev1y ago](https://www.amazon.co.uk/dp/B0F13WM3HD) [**JTC LTD Lab-Grown Round Cut Diamond Stud Earrings for Women 0.10Ct to 2.00Ct 4-Claw Setting Handcrafted in UK 9K Gold (White Yellow Rose) Hallmarked Push Back (9K White Gold 0.25Carat)**JTC LTD**£126.15**0 rev1y ago](https://www.amazon.co.uk/dp/B0DSJ46XX8) [**Canvalite 2784PCS Rhinestones with 5Pcs 3ml B7000 rhinestone glue 6 Sizes Flat Back Gems Crystal AB Nail Art Gems with Pick Up Tweezers and Rhinestone Picker Dotting Pen Tools for Nails Face Craft**CANVALITE**£7.23**1,913 rev1y ago](https://www.amazon.co.uk/dp/B0DFQ6MS11) [**HALUKAKAH 18K Real Gold Plated Pendant Necklace Set for Men - Over 1000 Diamonds - Cuban Link Chain - Clustered Diamonds Crown King Letter Pendant - Hip Hop Style - Complete with Giftbox**HALUKAKAH**£19.55**12 rev2y ago](https://www.amazon.co.uk/dp/B09FZ3BRS8)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Ecripe Moissanite Round Cut D Color VVS1 Created Diamond Earrings 925 Sterling Silver Stud Earrings Hypoallergenic Brilliant Round Cut Earring Moissanite Jewelry 3-7MM (7mm/1.25ct)**Ecripe**£27.79**4.4★**▲ 119%**](https://www.amazon.co.uk/dp/B0GSZ9JZFJ) [**HERZWILD Decorative Diamond Crystals Approx. 1100 Pieces Colourless Sparkling Diamond Crystals Confetti Decorative Stones Crystals Diamonds (10 mm)**HERZWILD**£6.49**4.5★**▲ 116%**](https://www.amazon.co.uk/dp/B093KK3CGT) [**HALUKAKAH 18K Real Gold Plated Pendant Necklace Set for Men - Over 1000 Diamonds - Cuban Link Chain - Clustered Diamonds Crown King Letter Pendant - Hip Hop Style - Complete with Giftbox**HALUKAKAH**£19.55**5.0★**▲ 99%**](https://www.amazon.co.uk/dp/B09FZ3BRS8) [**JTC LTD Lab-Grown Round Cut Diamond Stud Earrings for Women 0.10Ct to 2.00Ct 4-Claw Setting Handcrafted in UK 9K Gold (White Yellow Rose) Hallmarked Push Back (9K White Gold 0.25Carat)**JTC LTD**£126.15**0.0★**▲ 89%**](https://www.amazon.co.uk/dp/B0DSJ46XX8) [**ONLYDIAMONDS Diamond Studs in 18K White Gold 0.20-1.00cttw Womens Earrings Mens Sparkling Earrings Solitaire for her/him Real Diamond Jewellery Luxury with Gift Box (0.20CTW)**Only Diamonds London**£178.75**3.6★**▲ 60%**](https://www.amazon.co.uk/dp/B0F13WM3HD)
**~~View all trending →~~**
## **What buyers say about diamond**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Value For Money**20%
*“Good value for money”*
**Brightness/Shine/Glow**18%
*“Sparkly and nice to look at”*
**Size-Overall**18%
*“Just the size I needed”*
**Quality-Overall**16%
*“I am very happy with the quality”*
**Shape/Style**5%
*“Nice looking very chic”*
**Gifting Purpose**4%
*“so this fitted the bill as a gift for the other one”*
**Metal Authenticity**2%
*“I can definitely see the 925 stamp on them so they are certified silver”*
**Precious Gemstone**2%
*“They are Moissanite a man made 'diamond' they look brilliant”*
**Color**2%
*“The colours are bright and vibrant, and theyre a great size for little hands”*
**Strength**2%
*“Theyre sturdy and look much more expensive than they are”*
### **What buyers complain about **
**Adhesion/Stickiness**35%
*“The glue is all dried up”*
**Quality-Overall**15%
*“Not the best”*
**Size-Overall**8%
*“sadly slightly too big to fit in the box”*
**Ease Of Cleaning**5%
*“despite cutting the tops off to try to get some out it's just a thick mess”*
**Material Quality**5%
*“The material used for the pen part crumbled”*
**Durability**5%
*“broke within seconds”*
**Advertised Vs Actual Product**5%
*“Not as advertised”*
**Brightness/Shine/Glow**5%
*“Not the same picture never shine”*
**Value For Money**3%
*“so they are more expensive than crystal or cz”*
### **Top return reasons **
**Size-Overall**61%
**Adhesion/Stickiness**12%
**Value For Money**5%
**Advertised Vs Actual Product**4%
**Quality-Overall**3%
**Shape/Style**3%
**Functionality-Overall**1%
**Compatibility-Overall**1%
**Durability**1%
**Brightness/Shine/Glow**1%
## **Common questions**
- **Is diamond profitable to sell on Amazon United Kingdom?**
- The niche generates £28K/yr across 16 tracked products. 0 of 1 products launched in the last 360 days are still selling. 90-day search growth is -10.5%. Flapen's verdict: Skip it (42/100).
- **How competitive is the diamond niche?**
- 15 brands and 18 sellers compete. The top 5 products take 66% of clicks and top 5 brands hold 67% of demand.
- **What do buyers complain about in diamond?**
- Top complaints mined from reviews: Adhesion/Stickiness, Quality-Overall, Size-Overall. The return rate is 1.3%.
- **When does demand for diamond peak?**
- Demand peaks in Dec; the busiest month runs 1.4× the quietest.
- **What does it cost to enter the diamond niche?**
- Listings span £3.72–£178.75; the average listing price is £34.64 (sweet spot $15–$100). The average incumbent carries 356 reviews — the moat a new listing must climb.
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