sea glass
Skip itPrices mostly outside the sweet spot ($3.96–$13.28) — this niche doesn't clear our bar today.
Review moat
Incredible31.83avg incumbent reviews — the moat a new listing must climb
Quality gap
Great4.0★avg incumbent rating — lower means beatable quality
Returns
Great1.2%return rate — above 5% kills the launch gate
Brand share
Good61%top-5 brand share — brands hold most of the demand
Competition
Good55%top-5 click share — leaders hold, buyers still browse
Growth
Okay+4.8%90-day search growth — must beat 0% to launch
Conversion
Bad1.9%search→purchase rate — share of searches ending in a sale
Avg price
Bad£8.39avg listing price — sweet spot $15–$100
Market size
Bad£26K£26K/yr · 158K searches
Price range
Bad£3.96–£13.28cheapest to priciest tracked listing — scored on the share inside $15–$100
According to Flapen's Amazon United Kingdom niche tracking, sea glass is a £26K/yr Amazon United Kingdom market (158K searches/yr). The top 5 brands hold 61% of demand. Verdict: Skip it — 47/100.
Data updated Jul 27, 2026 · scored weekly · How we score niches
sea glass market data
- Units sold / yr
- 3K–4K
- avg 0–100/product
- Revenue / yr
- £25K–£34K
- units × avg price
- Conversion rate
- 1.9%
- Avg BSR
- #692
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 87%
- Out of stock
- 11.6%
- Avg brand age
- 24 months
- Avg seller age
- 208 days
Competition & brand share
The top 5 products take 55% of clicks — established leaders, but buyers still shop beyond them.Brands
20 falling
Sellers
21
Top-5 brand share
61%
Top 20: 100%
Top-5 click share
55%
Top 20: 97%
Open market
34%
- PH PandaHall22%
- LATERN14%
- MAIBAOTA9%
- EPRHAY8%
- ZYQUES7%
- G&S homedeko5%
Demand
Weekly Amazon search volume, last 32 weeks — +4.8% search growth over the last 90 days.Top sea glass search terms
- sea glass64K/yr
- sea glass for crafting25K/yr
- seaglass17K/yr
- sea glass gifts32K/yr
- sea glass art14K/yr
- seaglass pieces6K/yr
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.
All 23 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
PH PandaHall 15.87oz(450g) Sea Glass Stones Colourful Frosted Glass Pebbles Gemstones Mixed Bulk Nuggets for Aquarium Rocks Fish Tank Gravel Vase Fillers DIY Crafts and Home Decor 8~13mm
PH PandaHall£7.964.5★27 rev
LATERN 600g Sea Glass Pieces 22 OZ Cobalt Blue White & Green Frosted Flat Sea Glass Vase Filler Crushed Sea Glass for Home Aquarium DIY Art Craft Beach Wedding Party Decor
LATERN£7.883.9★136 rev
EPRHAY 10-16mm Mixed Color Top Undrilled Sea Beach Glass Beads Bulk DIY Decor Fish Tank Aquarium Landscaping Stone Decoration
EPRHAY£5.144.0★180 rev
ZYQUES 800g Colourful Sea Glass Pieces 28.2 OZ Vase Filler Frosted Flat Sea Glass Aquarium Ornament DIY Craft for Beach Wedding Party Decor Home Blue White Green
ZYQUES£7.843.9★7 rev
MAIBAOTA Colorful Frosted Sea Glass Pebbles
MAIBAOTA£7.654.5★22 rev
Newest
by launch date
Sea Glass Pieces Nautical Crush Sea Glass White & Green Frosted Flat Chip Vase Filler Glasses Tumbled Deco for Home Aquarium DIY Art Craft Beach Wedding Party Decor
KEUGT£7.410 rev
500g Sea Glass Stones Colourful Glass Pebbles Gemstones Frosted Sea Glasses Pebbles Mixed Bulk Nuggetsor for Aquariums Gardens Crafts Vase Decoration
QKNOSM£9.791 rev
AZKEEGREY Colourful Frosted Sea Glass Pebbles Stones 2 lb
AZKEEGREY£13.280 rev
2PCS Heart-Shaped Sea Glass Friendship Decor Unique Sea Glass Friendship Heart Ornament Versatile Thank You Gift Thinking of You Gift Meaningful Commemorative Keepsake Personalized Ornaments
Cuikaan£3.964 rev
YHSKJCD 600g Sea Glass Pieces 22oz Cobalt Blue White & Green Frosted Flat Sea Glass Vase Filler Crushed Sea Glass for Home Aquarium DIY Art Craft Beach Wedding Party Decor
YHSKJCD£6.763 rev
Trending
90-day click momentumAZKEEGREY Colourful Frosted Sea Glass Pebbles Stones 2 lb
AZKEEGREY£13.280.0★
500g Sea Glass Stones Colourful Glass Pebbles Gemstones Frosted Sea Glasses Pebbles Mixed Bulk Nuggetsor for Aquariums Gardens Crafts Vase Decoration
QKNOSM£9.795.0★
2PCS Heart-Shaped Sea Glass Friendship Decor Unique Sea Glass Friendship Heart Ornament Versatile Thank You Gift Thinking of You Gift Meaningful Commemorative Keepsake Personalized Ornaments
Cuikaan£3.963.5★
White Pink Sea Glass 10oz Bulk Mix with 2 Pieces Seashells - Genuine Beach Tumbled Glass Pieces for Crafts Vase Filler Coastal Home Decor DIY Projects Gift Filling
G&S homedeko£6.833.2★
Sea Glass Pieces Nautical Crush Sea Glass White & Green Frosted Flat Chip Vase Filler Glasses Tumbled Deco for Home Aquarium DIY Art Craft Beach Wedding Party Decor
KEUGT£7.410.0★
What buyers say about sea glass
What buyers praise and complain about, mined from review topics.What buyers love
“Lovely colours”
“Beautiful for a present”
“so they're great value for money”
“Visual Appeal & Use:”
“Really easy for her to do on her own”
“Im happy with the amount and you get a good selection of shapes and size”
“They have a been very well cleaned compared to alot i've ordered in the past with very minimal dust left in the bag”
“These smaller pieces are perfect”
“Great fun making and good quality”
“displays in windows or artistic creations”
What buyers complain about
“Photos & description are misleading”
“they were quite large pieces”
“they are on the expensive side as you would need a lot more than 385g to be effective”
“Having to go find another gift totally disappointed, dont bother”
“It is infact a pottery sphere with a very poor transfer on it”
“The frame leaked”
“looks and feels cheap compared to other photos”
“The frame leaked”
“the colours in real life are more washed out than the images show”
“so if you're looking for something shiny these aren't for you”
Top return reasons
Common questions
- Is sea glass profitable to sell on Amazon United Kingdom?
- The niche generates £26K/yr across 23 tracked products. 0 of 13 products launched in the last 360 days are still selling. 90-day search growth is +4.8%. Flapen's verdict: Skip it (47/100).
- How competitive is the sea glass niche?
- 20 brands and 21 sellers compete. The top 5 products take 55% of clicks and top 5 brands hold 61% of demand.
- What do buyers complain about in sea glass?
- Top complaints mined from reviews: Advertised Vs Actual Product, Size-Overall, Value For Money. The return rate is 1.2%.
- What does it cost to enter the sea glass niche?
- Listings span £3.96–£13.28; the average listing price is £8.39 (sweet spot $15–$100). The average incumbent carries 32 reviews — the moat a new listing must climb.