diamonds
Skip itWeak search conversion (1.5%) — this niche doesn't clear our bar today.
Avg price
Great$57.30avg listing price — sweet spot $15–$100
Returns
Great1.3%return rate — above 5% kills the launch gate
Brand share
Good69%top-5 brand share — brands hold most of the demand
Competition
Okay57%top-5 click share — leaders hold, buyers still browse
Review moat
Okay2,405.45avg incumbent reviews — the moat a new listing must climb
Market size
Okay$160K$160K/yr · 193K searches
Growth
Okay+6.0%90-day search growth — must beat 0% to launch
Price range
Okay$6.23–$316.82cheapest to priciest tracked listing — scored on the share inside $15–$100
Quality gap
Okay4.6★avg incumbent rating — lower means beatable quality
Conversion
Bad1.5%search→purchase rate — share of searches ending in a sale
According to Flapen's Amazon United States niche tracking, diamonds is a $160K/yr Amazon United States market (193K searches/yr). The top 5 brands hold 69% of demand. Verdict: Skip it — 44/100.
Data updated Aug 3, 2026 · scored weekly · How we score niches
diamonds market data
- Units sold / yr
- 3K–4K
- avg 100–250/product
- Revenue / yr
- $172K–$229K
- units × avg price
- Conversion rate
- 1.5%
- Avg BSR
- #2,621
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 95%
- Out of stock
- 0.0%
- Avg brand age
- 39 months
- Avg seller age
- 172 days
Competition & brand share
The top 5 products take 57% of clicks — established leaders, but buyers still shop beyond them.Brands
14 falling
Sellers
18
Top-5 brand share
69%
Top 20: 100%
Top-5 click share
57%
Top 20: 97%
Open market
24%
- Hicarer31%
- DomeStar14%
- Pmfxinyao8%
- QFkris8%
- The Diamond Channel7%
- LONGWIN6%
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — +6.0% search growth over the last 90 days.No pronounced peak months · busiest ÷ quietest = 1.6×
Top diamonds search terms
- diamon33K/yr
- fake diamonds34K/yr
- dimond28K/yr
- diamantes22K/yr
- fake diamond17K/yr
- real diamonds13K/yr
- dimonds12K/yr
- acrylic diamonds11K/yr
- plastic diamonds6K/yr
- acrylic diamond gems4K/yr
Top diamonds 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.
All 22 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Hicarer 800-Piece Diamond Decorations - Acrylic Diamond Table Scatter Crystals for Vase Fillers Party Decor (Clear 30mm 20mm 12mm 8mm 4mm)
Hicarer$12.774.6★613 rev
Pmfxinyao 0.2-10 Carats Moissanite Loose Gemstone Round Cut D Color VVS1 Clarity with GRA Certificate. (0.2 Carats)
Pmfxinyao$10.674.5★44 rev
DomeStar Fake Ice 150PCS Fake Diamonds Plastic Diamonds Acrylic Rocks Vase Fillers for Centerpieces Wedding Party Table Scatter Food Display
DomeStar$7.064.7★15,924 rev
20mm (0.8in) Crystal Diamond Collectible Figurines Home Decor
QFkris$13.824.8★415 rev
The Diamond Channel CERTIFIED 1 to 12 Carat LAB GROWN Solitaire Diamond Stud Earrings Round Cut 4 Prong Screw Back (F-G Color VS1-VS2 Eye Clean Clarity)
The Diamond Channel$300.394.4★323 rev
Newest
by launch date
Moissanite Stud Earrings 925 Sterling Silver Diamond Studs 1 carat 5mm
Molenia$32.60180 rev
Pmfxinyao 0.2-10 Carats Moissanite Loose Gemstone Round Cut D Color VVS1 Clarity with GRA Certificate. (0.2 Carats)
Pmfxinyao$10.6744 rev
Gilded 1/2 Carat Total Weight Lab-Grown Diamond 14KT Gold Plated Silver Stud Earrings for Women| Hypoallergenic Fine Jewelry | 4-Prong Basket Push Back nut | SI1 Clarity F Color Round Cut
GILDED$102.70896 rev
Amazon Essentials 0.25 to 1 Carat IGI Certified Solitaire Lab Grown Diamond Stud 14k Gold 4 Prong Round Cut Earrings (G-H Color VS1-VS2 Clarity)
Amazon Essentials$109.14279 rev
Amazon Essentials IGI Certified 0.5 Carat Solitaire Lab Grown Diamond Pendant Necklace in 14k Yellow Gold - 16 Chain with 2 Extender
Amazon Essentials$316.82109 rev
Trending
90-day click momentum
The Diamond Channel Certified LAB GROWN 0.25-2.00ct Diamond Necklace for Women 14 Karat Solid Gold 4-Prong Necklace Gold Diamond Necklace For Women( 16 + 2 Inch Extender) (Sterling-Silver 0.25 cttw)
The Diamond Channel$148.664.5★
Gilded 1/2 Carat Total Weight Lab-Grown Diamond 14KT Gold Plated Silver Stud Earrings for Women| Hypoallergenic Fine Jewelry | 4-Prong Basket Push Back nut | SI1 Clarity F Color Round Cut
GILDED$102.704.6★
Gilded 1/4 Carat Total Weight Lab-Grown Diamond 10KT White Gold Stud Earrings for Women| Hypoallergenic Fine Gold Jewelry | 4-Prong Basket Push Back Nut | SI1 Clarity F Color Round Cut
GILDED$88.764.6★
Amazon Essentials 0.25 to 1 Carat IGI Certified Solitaire Lab Grown Diamond Stud 14k Gold 4 Prong Round Cut Earrings (G-H Color VS1-VS2 Clarity)
Amazon Essentials$109.144.5★
Moissanite Stud Earrings 925 Sterling Silver Diamond Studs 1 carat 5mm
Molenia$32.604.6★
What buyers say about diamonds
What buyers praise and complain about, mined from review topics.What buyers love
“Amazing quality”
“Great color choices”
“The adhesion is amazing”
“Good value”
“Easy to use”
“they sparkle”
“As advertised”
“a good size”
“Great gift”
“they dont break”
What buyers complain about
“The bag is really small”
“Messy glue”
“Not like picture”
“they smell like burnt plastic”
“the colors were completely different”
“the container though makes it hard to keep them separate”
“These are all low quality”
“Not worth the price at all”
“They were dull or didn't have any shine to them at all”
“No instructions”
Top return reasons
Common questions
- Is diamonds profitable to sell on Amazon United States?
- The niche generates $160K/yr across 22 tracked products. 90-day search growth is +6.0%. Flapen's verdict: Skip it (44/100).
- How competitive is the diamonds niche?
- 14 brands and 18 sellers compete. The top 5 products take 57% of clicks and top 5 brands hold 69% of demand.
- What do buyers complain about in diamonds?
- Top complaints mined from reviews: Size-Overall, Adhesion/Stickiness, Advertised Vs Actual Product. The return rate is 1.3%.
- When does demand for diamonds peak?
- Demand is steady year-round — the busiest month runs 1.6× the quietest.
- What does it cost to enter the diamonds niche?
- Listings span $6.23–$316.82; the average listing price is $57.30 (sweet spot $15–$100). The average incumbent carries 2,405 reviews — the moat a new listing must climb.