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red gems

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Prices mostly outside the sweet spot ($5.73–$14.23) — this niche doesn't clear our bar today.

Market size 10Growth 55Conversion 59Competition 54Returns 72Price range 0Avg price 23Brand share 22Review moat 34Quality gap 23

Returns

Good2.1%

return rate — above 6% kills the launch gate

Conversion

Good5.1%

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

Growth

Good+27.6%

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

Competition

Good53%

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

Review moat

Okay3,079.93

avg incumbent reviews — the moat a new listing must climb

Quality gap

Bad4.6★

avg incumbent rating — lower means beatable quality

Avg price

Bad$8.16

avg listing price — sweet spot $15–$100

Brand share

Bad91%

top-5 brand share — brand-locked demand

Market size

Bad$41K

$41K/yr · 98K searches

Price range

Bad$5.73–$14.23

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

Competition

The top 5 products take 53% of clicks — established leaders, but buyers still shop beyond them.

Brands

10 falling

Sellers

14

Top-5 brand share

91%

Open market

7%

  • TINKRSTUFF41%
  • Worthofbest24%
  • BELLEBOOST15%
  • BEADSLAND9%
  • qiipii4%
  • QINJIEJIE2%
  • Open — no brand owns it (4 brands, 7%)

Product shelf

Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.

0%10%$4K20%$8K30%$12K40%$16K101001K10K100K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 27 tracked products in this niche — three views at once, no toggling.

Demand & seasonality

Weekly Amazon search volume, last 88 weeks — +27.6% search growth over the last 90 days.
7K5KSpike '25Spike '26DecJanFebMarAprMayJunJulAugSepOctNovDecJanFebMarAprMayJun

Peak months: Oct, Nov · busiest ÷ quietest = 3.4×

Reviews

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

What buyers love

Color20%

“the color is pretty accurate”

Brightness/Shine/Glow17%

“They sparkle really nice”

Value For Money14%

“Affordable too”

Quality-Overall14%

“Good quality”

Size-Overall11%

“Great assortment of sizes”

Adhesion/Stickiness5%

“the glue is strong”

Ease Of Use5%

“easy to use”

Advertised Vs Actual Product4%

“Just as described”

Ease Of Application2%

“Easy to apply to my cup”

Durability2%

“The stones themselves have good clarity and are durable”

What buyers complain about

Color27%

“not the deep ruby red color I was looking for”

Adhesion/Stickiness22%

“poor glue”

Size-Overall13%

“To small”

Advertised Vs Actual Product8%

“Not as pictured”

Brightness/Shine/Glow3%

“I always worry is it will sparkle or be dull this are very sparkly”

Top return reasons

Size-Overall49%
Color25%
Value For Money5%
Advertised Vs Actual Product5%
Adhesion/Stickiness5%
Quality-Overall2%
Brightness/Shine/Glow2%
Storage Capacity1%
Functionality-Overall1%
Display Colors1%