---
title: "Black Onyx Necklace — $56K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/clothing-shoes-jewelry/black-onyx-necklace"
last_updated: "2026-08-10T08:17:26.313Z"
locale: en
meta:
description: "Niche score 42/100 · $56K/yr market · 115K searches/yr · $38.48 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 42/100 · $56K/yr market · 115K searches/yr · $38.48 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Black Onyx Necklace — $56K/yr Amazon US Niche (2026) - Flapen"
---
# **black onyx necklace**
**Skip it**
A small market ($56K/yr) — this niche doesn't clear our bar today.
Market size 14Growth 22Conversion 16Competition 74Returns 38Price range 81Avg price 95Brand share 49Review moat 44Quality gap 40
**Avg price**
**Incredible****$38.48**
avg listing price — sweet spot $15–$100
**Price range**
**Great****$8.11–$111.45**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Competition**
**Good****41%**
top-5 click share — leaders hold, buyers still browse
**Brand share**
**Okay****75%**
top-5 brand share — brands hold most of the demand
**Review moat**
**Okay****2,127.04**
avg incumbent reviews — the moat a new listing must climb
**Quality gap**
**Okay****4.5★**
avg incumbent rating — lower means beatable quality
**Returns**
**Okay****3.9%**
return rate — above 5% kills the launch gate
**Growth**
**Bad****-6.8%**
90-day search growth — must beat 0% to launch
**Conversion**
**Bad****1.3%**
search→purchase rate — share of searches ending in a sale
**Market size**
**Bad****$56K**
$56K/yr · 115K searches
According to Flapen's Amazon United States niche tracking, black onyx necklace is a $56K/yr Amazon United States market (115K searches/yr). The top 5 brands hold 75% of demand. Demand peaks in Dec. Verdict: Skip it — 42/100.
Data updated Jul 22, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **black onyx necklace market data**
- **Units sold / yr**
- **2K–2K**
- avg 0–100/product
- **Revenue / yr**
- **$58K–$77K**
- units × avg price
- **Conversion rate**
- **1.3%**
- **Avg BSR**
- **#3,760**
- **Page quality**
- **0%**
- **Prime**
- **93%**
- **Sponsored**
- **80%**
- **Out of stock**
- **12.5%**
- **Avg brand age**
- **44 months**
- **Avg seller age**
- **160 days**
## **Competition & brand share**
The top 5 products take 41% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**22 **▲rising
**Sellers**
**50**
**Top-5 brand share**
**75%**
Top 20: 99%
**Top-5 click share**
**41%**
Top 20: 77%
**Open market**
**21%**
- Kendra Scott36% - GAVU16% - Phyonio9% - SAMYA9% - HPQQ5% - Humble Chic NY3%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -6.8% search growth over the last 90 days.
8K6KHoliday '24Spike '25Prime Day '25Holiday '25 seasonSepDecMarJunAugNovMarMay
Peak months: Dec · busiest ÷ quietest = 2.6×
[**Open Trend **](https://flapen.com/research/us/clothing-shoes-jewelry/black-onyx-necklace/trend)
## **Top black onyx necklace search terms**
- **onyx necklace for women**21K/yr-0.6%0.3% conv. - **onyx pendant**12K/yr+10.0%0.3% conv. - **black onyx necklace for women**16K/yr-13.8%0.4% conv. - **black kendra scott necklace**11K/yr-13.8%2.3% conv. - **black onyx pendant**10K/yr-16.0%0.2% conv. - **onyx necklace for men**7K/yr+9.6%0.4% conv. - **kendra scott black necklace**9K/yr-8.0%2.9% conv. - **black onyx necklace for men**7K/yr+1.2%0.4% conv. - **kendra scott necklace black**8K/yr-21.8%2.4% conv. - **kendra scott black**7K/yr-5.7%1.6% conv. [**All search terms **](https://flapen.com/research/us/clothing-shoes-jewelry/black-onyx-necklace/search-terms)
## **Top black onyx necklace 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%3%$2K6%$3K9%$5K12%$7K1101001K10K100K 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**Kendra Scott Womens Emery Beaded Strand Necklace Gold Black Agate One Size**Kendra Scott**$59.15**4.7★21 rev](https://www.amazon.com/dp/B0FBJ3N4P7) [2**Phyonio Black Onyx Necklace for Men 14K Gold Plated Pendant Necklaces Mens Womens Stainless Steel Square Necklace with 18+2 Inch Box Chain**Phyonio**$19.29**4.6★216 rev](https://www.amazon.com/dp/B0C9J8KNBD) [3**Kendra Scott Elisa Pendant Necklace for Women Fashion Jewelry 14k Gold-Plated Black**Kendra Scott**$45.44**4.6★23,786 rev](https://www.amazon.com/dp/B00N1P4C50) [4**SAMYA Charm Necklace for Women Natural Black Onyx Beaded Necklace for Women Minimalist Beaded Charm Necklace with Stainless Steel Gold-Plated Oval Clasp 18 Length**SAMYA**$23.26**4.2★31 rev](https://www.amazon.com/dp/B0GMGCQPRN) [5**HPQQ Black Onyx Necklace for Women Sterling Silver Black Stone Jewelry**HPQQ**$52.90**5.0★7 rev](https://www.amazon.com/dp/B0CFXN6JJ7)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**SAMYA Charm Necklace for Women Natural Black Onyx Beaded Necklace for Women Minimalist Beaded Charm Necklace with Stainless Steel Gold-Plated Oval Clasp 18 Length**SAMYA**$23.26**31 rev5mo ago](https://www.amazon.com/dp/B0GMGCQPRN) [**GAVU Stainless Steel Dog Tag Necklace for Men Black Onyx Crystal Necklace for Men 24**GAVU**$26.50**10 rev10mo ago](https://www.amazon.com/dp/B0FQJ8Q77C) [**Kendra Scott Womens Emery Beaded Strand Necklace Gold Black Agate One Size**Kendra Scott**$59.15**21 rev1y ago](https://www.amazon.com/dp/B0FBJ3N4P7) [**GAVU 12mm Black Onyx Chunky Necklace for Women Gemstone Black Beaded Necklace for Women Crystal Choker Statement Jewelry 18**GAVU**$24.94**50 rev1y ago](https://www.amazon.com/dp/B0F17HQ96M) [**GAVU Mens Black Onyx Crystal Beaded Necklace 24 Length**GAVU**$23.70**20 rev1y ago](https://www.amazon.com/dp/B0DLNM1TST)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**GAVU Mens Crystal Necklace Tiger Eye Necklace Black Onyx Necklace for Men Beaded Necklace for Men 26**GAVU**$22.42**4.6★**▲ 134%**](https://www.amazon.com/dp/B0D93FM5Z4) [**GAVU Mens Black Onyx Crystal Beaded Necklace 24 Length**GAVU**$23.70**4.2★**▲ 134%**](https://www.amazon.com/dp/B0DLNM1TST) [**GAVU 12mm Black Onyx Chunky Necklace for Women Gemstone Black Beaded Necklace for Women Crystal Choker Statement Jewelry 18**GAVU**$24.94**4.1★**▲ 121%**](https://www.amazon.com/dp/B0F17HQ96M) [**GAVU 8mm Matte Onyx Necklace for Men Hand-knotted Mens Crystal Necklace 20**GAVU**$22.19**4.3★**▲ 114%**](https://www.amazon.com/dp/B0DK72XF39) [**SAMYA Charm Necklace for Women Natural Black Onyx Beaded Necklace for Women Minimalist Beaded Charm Necklace with Stainless Steel Gold-Plated Oval Clasp 18 Length**SAMYA**$23.26**4.2★**▲ 113%**](https://www.amazon.com/dp/B0GMGCQPRN)
**~~View all trending →~~**
## **What buyers say about black onyx necklace**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**24%
*“good quality jewelry”*
**Shape/Style**17%
*“it looks beautiful on”*
**Value For Money**10%
*“Worth it”*
**Size-Overall**7%
*“Great fit”*
**Color**7%
*“Love this Ive bought one in a bunch of colors”*
**Chain/Key Quality**6%
*“the reviews were great about the chain for this pendant”*
**Design-Overall**6%
*“it looks beautiful on”*
**Advertised Vs Actual Product**3%
*“As described”*
**Gifting Purpose**3%
*“This with some earring was a perfect birthday gift for my friend”*
**Durability**2%
*“Seems to be durable as she has worn it every day since receiving it”*
### **What buyers complain about **
**Chain/Key Quality**18%
*“chain broken”*
**Durability**16%
*“Broke”*
**Color**13%
*“the pendant is not and change colors”*
**Brightness/Shine/Glow**13%
*“No shine”*
**Quality-Overall**6%
*“Poor Quality”*
**Size-Overall**6%
*“very tiny”*
**Weight Heavy**5%
*“Only downside id say is its a bit heavy”*
**Thickness**3%
*“the chain is so thin”*
**Material Quality**3%
*“it is made poorly”*
**Advertised Vs Actual Product**3%
*“Pretty necklace, false description”*
### **Top return reasons **
**Size-Overall**46%
**Chain/Key Quality**7%
**Advertised Vs Actual Product**7%
**Neck Fit**6%
**Quality-Overall**5%
**Color**4%
**Wrist Fit**3%
**Shape/Style**3%
**Defective Material/Parts**3%
**Value For Money**2%
## **Common questions**
- **Is black onyx necklace profitable to sell on Amazon United States?**
- The niche generates $56K/yr across 45 tracked products. 0 of 4 products launched in the last 360 days are still selling. 90-day search growth is -6.8%. Flapen's verdict: Skip it (42/100).
- **How competitive is the black onyx necklace niche?**
- 22 brands and 50 sellers compete. The top 5 products take 41% of clicks and top 5 brands hold 75% of demand.
- **What do buyers complain about in black onyx necklace?**
- Top complaints mined from reviews: Chain/Key Quality, Durability, Color. The return rate is 3.9%.
- **When does demand for black onyx necklace peak?**
- Demand peaks in Dec; the busiest month runs 2.6× the quietest.
- **What does it cost to enter the black onyx necklace niche?**
- Listings span $8.11–$111.45; the average listing price is $38.48 (sweet spot $15–$100). The average incumbent carries 2,127 reviews — the moat a new listing must climb.
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