---
title: "Necklace Extender — £108K/yr Amazon UK Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/uk/fashion/necklace-extender"
last_updated: "2026-08-01T00:45:50.130Z"
locale: en
meta:
description: "Niche score 54/100 · £108K/yr market · 159K searches/yr. Prices mostly outside the sweet spot ($3.04–$14.11) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 54/100 · £108K/yr market · 159K searches/yr. Prices mostly outside the sweet spot ($3.04–$14.11) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Necklace Extender — £108K/yr Amazon UK Niche (2026) - Flapen"
---
# **necklace extender**
**Worth a look**
Shows low returns (0.6%), but prices mostly outside the sweet spot ($3.04–$14.11) keeps it on the watch list.
Market size 26Growth 31Conversion 95Competition 51Returns 97Price range 0Avg price 15Brand share 66Review moat 73Quality gap 72
**Returns**
**Incredible****0.6%**
return rate — above 5% kills the launch gate
**Conversion**
**Incredible****12.3%**
search→purchase rate — share of searches ending in a sale
**Review moat**
**Good****587.67**
avg incumbent reviews — the moat a new listing must climb
**Quality gap**
**Good****4.3★**
avg incumbent rating — lower means beatable quality
**Brand share**
**Good****66%**
top-5 brand share — brands hold most of the demand
**Competition**
**Good****54%**
top-5 click share — leaders hold, buyers still browse
**Growth**
**Okay****+4.8%**
90-day search growth — must beat 0% to launch
**Market size**
**Okay****£108K**
£108K/yr · 159K searches
**Avg price**
**Bad****£5.54**
avg listing price — sweet spot $15–$100
**Price range**
**Bad****£3.04–£14.11**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Signals**[** No Dominant Brand**](https://flapen.com/research/niches?market=uk&signal=no_dominant_brand "Top brand's click share < 20%")
According to Flapen's Amazon United Kingdom niche tracking, necklace extender is a £108K/yr Amazon United Kingdom market (159K searches/yr). The top 5 brands hold 66% of demand. Demand peaks in Dec. Verdict: Worth a look — 54/100.
Data updated Jul 23, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **necklace extender market data**
- **Units sold / yr**
- **15K–20K**
- avg 750–1,000/product
- **Revenue / yr**
- **£83K–£111K**
- units × avg price
- **Conversion rate**
- **12.3%**
- **Avg BSR**
- **#63**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **89%**
- **Out of stock**
- **1.1%**
- **Avg brand age**
- **26 months**
- **Avg seller age**
- **201 days**
## **Competition & brand share**
The top 5 products take 54% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**22 **▲rising
**Sellers**
**33**
**Top-5 brand share**
**66%**
Top 20: 98%
**Top-5 click share**
**54%**
Top 20: 92%
**Open market**
**29%**
- ALEXCRAFT17% - BOXOB16% - KUTKE13% - TEAMIOULING10% - Mozeat Lens10% - Bonison5%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +4.8% search growth over the last 90 days.
6K4KHoliday '24Spike '25Holiday '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Dec · busiest ÷ quietest = 1.7×
[**Open Trend **](https://flapen.com/research/uk/fashion/necklace-extender/trend)
## **Top necklace extender search terms**
- **necklace extender**58K/yr+6.5%10.5% conv. - **necklace extender silver**19K/yr-8.1%12.7% conv. - **bracelet extender silver**13K/yr+10.8%6.7% conv. - **silver necklace extender**14K/yr-6.8%11.5% conv. - **chain extender for necklace**11K/yr-0.7%8.5% conv. - **bracelet extender**13K/yr-3.3%3.2% conv. - **sterling silver necklace extender**9K/yr+14.1%6.6% conv. - **silver chain extender**9K/yr-6.2%8.8% conv. - **sterling silver chain extender**5K/yr+68.2%4.2% conv. - **chain extender**6K/yr+27.3%5.1% conv. [**All search terms **](https://flapen.com/research/uk/fashion/necklace-extender/search-terms)
## **Top necklace extender 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%4%£4K8%£9K12%£13K16%£17K1101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 24 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**4pcs Necklace Extender Silver 2/4/6/8 Inches Necklace Clasp Extender Chain Extenders for Necklaces Bracelets Jewelry Making Women Men (4 Sizes)**BOXOB**£4.02**4.3★921 rev](https://www.amazon.co.uk/dp/B0BLCFYH1Z) [2**4pcs Necklace Extender Silver 2/4/6/8 Inches Chain Extenders Necklace Clasp Extender silver necklace extender chain extender for necklace for Women Men Necklaces Bracelets Jewelry Making Bracelet**KUTKE**£3.59**4.4★6 rev](https://www.amazon.co.uk/dp/B0GSZHM69D) [3**TEAMIOULING 6 Pcs Necklace Extender Gold Plated Silver Necklaces Extenders Chain 2 4 6 Delicate Chain Extenders for Necklaces Bracelet Anklet Jewelry Making for Women Men**TEAMIOULING**£3.06**4.5★43 rev](https://www.amazon.co.uk/dp/B0FHLTPSSV) [4**Necklace Extender 3 PCS Silver Plated Alloy Chain Extenders Jewelry Extenders with Lobster Claw Clasp 2/3/4 inch Chain Extension for Necklaces Braclets Anklets Jewelry Making Supplies for Women**Mozeat Lens**£3.46**4.5★138 rev](https://www.amazon.co.uk/dp/B0CMBXKYXF) [5**Silver Necklace Extender Chain for Bracelet Jewelry Extension Chain Finding**ALEXCRAFT**£7.20**4.3★205 rev](https://www.amazon.co.uk/dp/B0B38XMLGP)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**4pcs Necklace Extender Silver 2/4/6/8 Inches Chain Extenders Necklace Clasp Extender silver necklace extender chain extender for necklace for Women Men Necklaces Bracelets Jewelry Making Bracelet**KUTKE**£3.59**6 rev4mo ago](https://www.amazon.co.uk/dp/B0GSZHM69D) [**TreeTribe 6 Pcs Necklace Extender Silver and Gold Stainless Steel Gold Silver Necklace Extender with Lobster Claw Buckles Jewelry Extenders for Suspenders Bracelets Anklets and Other Jewelry Making**TreeTribe**£3.04**4 rev8mo ago](https://www.amazon.co.uk/dp/B0G1F6VPBB) [**3-Piece Stainless Steel Jewelry Extender Set for Necklaces Bracelets & Anklets - Adjustable Silver Chain Extender for DIY Jewelry Making**Lyntrioris**£3.15**4 rev10mo ago](https://www.amazon.co.uk/dp/B0FSRK4GTC) [**6PCS Necklace Extender Stain/Less St/EEL Silver Necklace Extender Fine Chain Extender for Jewelry Making Jewelry Accessories for Necklaces Suspenders Bracelets Anklets Stainless Silver Chain**CiLiHai**£3.86**4 rev10mo ago](https://www.amazon.co.uk/dp/B0FP2BSGY9) [**GodtKowty Sterling Silver Necklace Extender Includes 3 Adjustable Chains (1 2 3) for Necklaces Bracelets and Anklets - Durable Hypoallergenic Jewelry Extenders for Women**GodtKowty**£6.05**9 rev1y ago](https://www.amazon.co.uk/dp/B0FJ1R78FM)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**4pcs Necklace Extender Silver 2/4/6/8 Inches Chain Extenders Necklace Clasp Extender silver necklace extender chain extender for necklace for Women Men Necklaces Bracelets Jewelry Making Bracelet**KUTKE**£3.59**4.4★**▲ 267%**](https://www.amazon.co.uk/dp/B0GSZHM69D) [**6PCS Necklace Extender Stain/Less St/EEL Silver Necklace Extender Fine Chain Extender for Jewelry Making Jewelry Accessories for Necklaces Suspenders Bracelets Anklets Stainless Silver Chain**CiLiHai**£3.86**5.0★**▲ 196%**](https://www.amazon.co.uk/dp/B0FP2BSGY9) [**GodtKowty Sterling Silver Necklace Extender Includes 3 Adjustable Chains (1 2 3) for Necklaces Bracelets and Anklets - Durable Hypoallergenic Jewelry Extenders for Women**GodtKowty**£6.05**3.7★**▲ 167%**](https://www.amazon.co.uk/dp/B0FJ1R78FM) [**Bonison Necklace Extenders for Women 18K Gold Plated Adjustable Chain Extension with Lobster Clasp 3PCS Jewellery Extenders for Necklaces Bracelets Anklets DIY Making (2 4 6)**Bonison**£4.51**4.4★**▲ 148%**](https://www.amazon.co.uk/dp/B0C3QSZ2F7) [**ALEXCRAFT 3Pcs Necklace Extender 925 Sterling Silver Chain Extenders Bracelet Clasp Extension for Jewellery Making Box Chains 0.8mm 1 2 3 Inch**ALEXCRAFT**£9.30**4.4★**▲ 143%**](https://www.amazon.co.uk/dp/B08HS8FX7S)
**~~View all trending →~~**
## **What buyers say about necklace extender**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Value For Money**21%
*“Well worth it”*
**Advertised Vs Actual Product**19%
*“As described”*
**Quality-Overall**14%
*“Good quality”*
**Chain/Key Quality**10%
*“Chains”*
**Ease Of Use**9%
*“I can wear it comfortably”*
**Size-Overall**7%
*“Fit my piece perfectly”*
**Add-Ons/Attachments**3%
*“are easy to attach to the necklace”*
**Fastener Quality**2%
*“so you can also use this on chains with fiddly clasps to make them easier to put on”*
**Durability**2%
*“I think that these useful extenders are durable and sturdy”*
**Strength**2%
*“Sturdy and good quality”*
### **What buyers complain about **
**Durability**25%
*“Broken after 4 months”*
**Color**19%
*“But the gold ones went black after a week”*
**Quality-Overall**11%
*“terrible quality and break constantly”*
**Size-Overall**8%
*“Smaller than I thought”*
**Strength**8%
*“item is very flimsy very thin”*
**Thickness**6%
*“was not expecting thicker links given photos”*
**Chain/Key Quality**3%
*“Very poor quality chain broke putting it on”*
**Allergies**3%
*“unfortunately tarnishes very easily and caused a skin reaction and itchiness”*
**Advertised Vs Actual Product**3%
*“Not strictly what was advertised”*
**Value For Money**3%
*“Waste of money”*
### **Top return reasons **
**Size-Overall**35%
**Color**11%
**Durability**7%
**Thin**6%
**Quality-Overall**5%
**Compatibility-Overall**4%
**Strength**4%
**Fastener Quality**4%
**Metal Authenticity**4%
**Chain/Key Quality**3%
## **Common questions**
- **Is necklace extender profitable to sell on Amazon United Kingdom?**
- The niche generates £108K/yr across 27 tracked products. 0 of 5 products launched in the last 360 days are still selling. 90-day search growth is +4.8%. Flapen's verdict: Worth a look (54/100).
- **How competitive is the necklace extender niche?**
- 22 brands and 33 sellers compete. The top 5 products take 54% of clicks and top 5 brands hold 66% of demand.
- **What do buyers complain about in necklace extender?**
- Top complaints mined from reviews: Durability, Color, Quality-Overall. The return rate is 0.6%.
- **When does demand for necklace extender peak?**
- Demand peaks in Dec; the busiest month runs 1.7× the quietest.
- **What does it cost to enter the necklace extender niche?**
- Listings span £3.04–£14.11; the average listing price is £5.54 (sweet spot $15–$100). The average incumbent carries 588 reviews — the moat a new listing must climb.
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