Is sea glass profitable to sell on Amazon United States?

The niche generates $283K/yr across 49 tracked products. 2 of 11 products launched in the last 360 days are still selling. 90-day search growth is +24.1%. Flapen's verdict: Worth a look (56/100).

How competitive is the sea glass niche?

27 brands and 32 sellers compete. The top 5 products take 43% of clicks and top 5 brands hold 70% of demand.

What do buyers complain about in sea glass?

Top complaints mined from reviews: Size-Overall, Value For Money, Quality-Overall. The return rate is 3.0%.

When does demand for sea glass peak?

Demand peaks in Nov–Dec; the busiest month runs 1.7× the quietest.

What does it cost to enter the sea glass niche?

Listings span $6.28–$24.35; the average listing price is $12.15 (sweet spot $15–$100). The average incumbent carries 372 reviews — the moat a new listing must climb.

sea glass

Worth a look

Shows a thin review moat (372 avg reviews), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.

Review moat

Great372.18

avg incumbent reviews — the moat a new listing must climb

Competition

Good43%

top-5 click share — leaders hold, buyers still browse

Quality gap

Good4.4★

avg incumbent rating — lower means beatable quality

Brand share

Good70%

top-5 brand share — brands hold most of the demand

Growth

Good+24.1%

90-day search growth — must beat 0% to launch

Price range

Good$6.28–$24.35

cheapest to priciest tracked listing — scored on the share inside $15–$100

Returns

Good3.0%

return rate — above 5% kills the launch gate

Avg price

Good$12.15

avg listing price — sweet spot $15–$100

Market size

Good$283K

$283K/yr · 697K searches

Conversion

Okay3.3%

search→purchase rate — share of searches ending in a sale

According to Flapen's Amazon United States niche tracking, sea glass is a $283K/yr Amazon United States market (697K searches/yr). The top 5 brands hold 70% of demand. Demand peaks in Nov–Dec. Verdict: Worth a look — 56/100.

Data updated Aug 3, 2026 · scored weekly · How we score niches

sea glass market data

Units sold / yr: 25K–30K; avg 250–500/product
Revenue / yr: $304K–$365K; units × avg price
Conversion rate: 3.3%
Avg BSR: #300
Page quality: 0%
Prime: 100%
Sponsored: 94%
Out of stock: 1.9%
Avg brand age: 39 months
Avg seller age: 169 days

Competition & brand share

The top 5 products take 43% of clicks — established leaders, but buyers still shop beyond them.

Brands

27 rising

Sellers

Top-5 brand share

70%

Top 20: 95%

Top-5 click share

43%

Top 20: 77%

Open market

25%

QYGL39%
Jetec14%
Sukh6%
RCFFDL6%
Keedolla6%
Tumbler Home5%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +24.1% search growth over the last 90 days.

Peak months: Nov, Dec · busiest ÷ quietest = 1.7×

Open Trend

Top sea glass search terms

sea glass349K/yr +23.0%2.3% conv.
sea glass for crafts159K/yr +24.8%3.0% conv.
seaglass50K/yr +22.7%2.1% conv.
beach glass25K/yr +49.8%2.5% conv.
seaglass for crafts29K/yr +11.8%3.0% conv.
seaglass bulk8K/yr +91.4%2.7% conv.
blue sea glass10K/yr +25.4%1.8% conv.
bulk sea glass10K/yr +17.1%1.4% conv.
sea glass stones6K/yr +45.6%1.5% conv.
sea glass bulk7K/yr +19.1%3.1% conv.

All search terms

Top sea glass 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.

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

QYGL Sea Glass for Crafts - 14oz Frosted Seaglass Pieces - Vase Filler and Aquarium Ornament DIY Craft Supplies for Art Beach Weddings and Home Decor (Blue Aqua Green White)

QYGL$8.714.5★587 rev

Jetec Sea Glass for Crafts Pieces Seaglass Decor Flat Frosted Sea Glass Ornaments Vase Filler Crushed for Beach Wedding Party Decor Home Aquarium DIY Craft Supplies 11 oz(Blue White Green)

Jetec$8.974.4★1,628 rev

Sea Glass for Crafts - 34oz Frosted Seaglass Pieces - Vase Filler and Aquarium Ornament DIY Craft Supplies for Art Beach Weddings and Home Decor (Blue Aqua Green White)

QYGL$18.054.6★182 rev

QYGL Sea Glass Block - 1LB Colorful Mixed Frosted Sea Glass - Vase Filler and Aquarium Ornament DIY Craft Supplies for Art Sea Glass Decor Beach Weddings and Home Decor

QYGL$9.864.0★49 rev

Sukh Sea Glass for Crafts Bulk 15 OZ Seaglass Blue Green Clear Mix Beach Glass for Crafts Sea Glass Decor Vase Filler Sea Glass Art for DIY Home Coastal Decoration & Christmas Tree Projects

Sukh$6.364.4★365 rev

Newest

by launch date

CUNHUY 2 LBS Frosted Sea Glass Bulk 32oz Colorful Assorted Beach Glass Pieces for Crafts Premium Matte Sea Glass for Vase Filler DIY Jewelry Nautical Home Decor Aquarium & Wedding Ornaments

CUNHUY$16.554 rev

9mo ago

Keedolla Tumbled Sea Glass for Crafts - 10 OZ Flat Frosted Seaglass Pieces Crushed for DIY Art Crafts Vase Filler Beach Weddings Aquarium and Home Decor (Blue White Light Green)

Keedolla$6.68421 rev

11mo ago

QYGL Sea Glass Block - 1LB Colorful Mixed Frosted Sea Glass - Vase Filler and Aquarium Ornament DIY Craft Supplies for Art Sea Glass Decor Beach Weddings and Home Decor

QYGL$9.8649 rev

11mo ago

Keedolla White Beach Sea Glass for Crafts Frosted Seaglass Pieces Decor Vase Filler Crushed for Aquarium DIY Art Craft Beach Wedding and Home Decor

Keedolla$9.08421 rev

1y ago

Abeillo 45oz Sea Glass for Crafts Frosted Seaglass Pieces Vase Filler and Aquarium Decor Smooth Edge Seaglass for DIY Art and Home Decor (Blue Green White)

Abeillo$19.2821 rev

1y ago

What buyers say about sea glass

What buyers praise and complain about, mined from review topics.

What buyers love

Color30%

“variety of colors”

Quality-Overall12%

“Excellent variety”

Design-Overall9%

“Looks great”

Value For Money8%

“Good deal”

Size-Overall6%

“the perfect size”

Gifting Purpose5%

“This is truly a cute gift”

Advertised Vs Actual Product5%

“Exactly as shown in the picture”

Soft Feel2%

“They're frosted and true in color, and they're smooth”

Weight Heavy2%

“The weight is hearty and stable”

Correct Contents1%

“Beautiful pieces”

What buyers complain about

Size-Overall39%

“Too small”

Value For Money8%

“Not worth the price”

Quality-Overall7%

“Not as good as it looks”

Color6%

“Color isnt real”

Advertised Vs Actual Product6%

“Not as pictured”

Paint Quality3%

“In addition, the COLORS are PAINTED ON”

Hard Feel2%

“Rough edges”

Leak-Proof2%

“Spilled rocks”

Thickness1%

“Too thick and chunky”

Brightness/Shine/Glow1%

“Instead of looking bright or polished”

Top return reasons

Size-Overall54%

Advertised Vs Actual Product14%

Color11%

Value For Money5%

Defective Material/Parts3%

Display Colors3%

Material Quality2%

Functionality-Overall2%

Quality-Overall1%

Shape/Style1%

Common questions

Is sea glass profitable to sell on Amazon United States?: The niche generates $283K/yr across 49 tracked products. 2 of 11 products launched in the last 360 days are still selling. 90-day search growth is +24.1%. Flapen's verdict: Worth a look (56/100).
How competitive is the sea glass niche?: 27 brands and 32 sellers compete. The top 5 products take 43% of clicks and top 5 brands hold 70% of demand.
What do buyers complain about in sea glass?: Top complaints mined from reviews: Size-Overall, Value For Money, Quality-Overall. The return rate is 3.0%.
When does demand for sea glass peak?: Demand peaks in Nov–Dec; the busiest month runs 1.7× the quietest.
What does it cost to enter the sea glass niche?: Listings span $6.28–$24.35; the average listing price is $12.15 (sweet spot $15–$100). The average incumbent carries 372 reviews — the moat a new listing must climb.