Is lab grown diamond profitable to sell on Amazon United States?

The niche generates $37K/yr across 70 tracked products. 10 of 22 products launched in the last 360 days are still selling. 90-day search growth is -14.6%. Flapen's verdict: Skip it (39/100).

How competitive is the lab grown diamond niche?

21 brands and 32 sellers compete. The top 5 products take 28% of clicks and top 5 brands hold 73% of demand.

What do buyers complain about in lab grown diamond?

Top complaints mined from reviews: Size-Overall, Quality-Overall, Durability. The return rate is 3.9%.

What does it cost to enter the lab grown diamond niche?

Listings span $12.60–$1048.88; the average listing price is $200.48 (sweet spot $15–$100). The average incumbent carries 216 reviews — the moat a new listing must climb.

Lab Grown Diamond

Skip it

Weak search conversion (0.1%) — this niche doesn't clear our bar today.

Review moat

Great216

avg incumbent reviews — the moat a new listing must climb

Competition

Great28%

top-5 click share — an open shelf

Brand share

Good73%

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

Quality gap

Good4.4★

avg incumbent rating — lower means beatable quality

Avg price

Okay$200.48

avg listing price — sweet spot $15–$100

Returns

Okay3.9%

return rate — above 5% kills the launch gate

Growth

Bad-14.6%

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

Market size

Bad$37K

$37K/yr · 311K searches

Price range

Bad$12.60–$1048.88

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

Conversion

Bad0.1%

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

Signals High Price

Is lab grown diamond profitable on Amazon?

According to Flapen's Amazon United States niche tracking, lab grown diamond is a $37K/yr Amazon United States market (311K searches/yr). The top 5 brands hold 73% of demand. Verdict: Skip it — 39/100.

Data updated Jul 21, 2026 · scored weekly · How we score niches

lab grown diamond market size & sales

Units sold, revenue, conversion and listing quality across the tracked shelf.

Units sold / yr: 250–500; avg 0–100/product
Revenue / yr: $50K–$100K; units × avg price
Conversion rate: 0.1%
Avg BSR: #21,888
Page quality: 0%
Prime: 73%
Sponsored: 87%
Out of stock: 3.0%
Avg brand age: 33 months
Avg seller age: 187 days

Competition: brands, sellers & click share

Clicks spread well past the top 5 (28% combined) — an open shelf where new products get seen.

Brands

21 rising

Sellers

Top-5 brand share

73%

Top 20: 100%

Top-5 click share

28%

Top 20: 62%

Open market

22%

GILDED25%
Belacqua18%
Generic12%
Amazon Essentials12%
JDNIONSIGN6%
The Diamond Channel5%

lab grown diamond demand & seasonality

Weekly Amazon search volume, last 32 weeks — -14.6% search growth over the last 90 days.

Open Trend

Top lab grown diamond search terms shoppers use

The exact queries shoppers type, with yearly volume, growth and conversion.

lab grown diamond72K/yr +2.6%0.1% conv.
houston diamond district63K/yr -41.0%0.0% conv.
lab grown diamonds35K/yr +5.3%0.1% conv.
lab diamond38K/yr -5.5%0.1% conv.
lab created diamonds18K/yr +1.9%0.1% conv.
lab diamonds13K/yr +10.8%0.0% conv.
houston diamond district engagement ring8K/yr +2.9%0.0% conv.
lab created diamond10K/yr -27.2%0.0% conv.
lab diamonds clearance rings7K/yr -43.7%0.0% conv.
lab-grown diamonds5K/yr +77.4%0.0% conv.

All search terms

Top lab grown diamond products & what they sell for

Every tracked product — its share of the shelf, its review moat, and what it sells for.

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

Belacqua 1/4 Carat Round Lab Grown Diamond Stud Earrings in 14K White Gold Push Back F Color VS Clarity 4 Prong Setting Jewelry for Women Gift Box Included

Belacqua$93.634.5★80 rev

Moissanite Stud Earrings 18K White Gold Plated Hypoallergenic Stud Earrings for Women Men 1.0CT*2 Round Moissanite Earrings Lab Created Diamond Stud Earrings D Color VVS1

JDNIONSIGN$21.154.6★156 rev

Gilded 1 Carat Total Weight Lab-Grown Diamond Stud Earrings for Women| 925 Sterling Silver Studs | Hypoallergenic Fine Jewelry | 4-Prong Basket Push Back Nut | SI1 Clarity F Color Round Cut

GILDED$196.514.6★872 rev

Gilded 1/2 ct. T.W. Round Lab Diamond Stud Earrings for Women | 925 Sterling Silver Studs | Hypoallergenic Fine Jewelry | 4-Prong Basket Push Back Nut | SI1 Clarity F Color Round Cut

GILDED$104.484.6★872 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$103.014.6★872 rev

Newest

by launch date

Moissanite Stud Earrings 18K White Gold Plated Hypoallergenic Stud Earrings for Women Men 1.0CT*2 Round Moissanite Earrings Lab Created Diamond Stud Earrings D Color VVS1

JDNIONSIGN$21.15156 rev

5mo ago

Belacqua 1 Carat Round Lab Grown Diamond Tennis Bracelet in Sterling Silver G Color SI Clarity 6 Inches Length Dainty Jewelry for Women Gift Box Included

Belacqua$143.3443 rev

8mo ago

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$364.47447 rev

9mo ago

shownii Diamond Necklace Certified LAB GROWN Round Diamond Solitaire Necklaces for Women 1 CT 14K Gold Plated Sterling Silver 4 Prong Solitaire Pendant Jewelry (I-J Color SI1-VS2 Clarity)

shownii$287.7549 rev

9mo ago

Natural Lab Grown Diamond Certified Round Cut D Grade VVS1 Clarity Loose Gemstone Ideal for Crafting Necklaces Bracelets & Fine Jewelry Making (2 Carat)

Generic$44.229 rev

11mo ago

What reviews say buyers love and hate about lab grown diamond

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

What buyers love

Quality-Overall20%

“Nice quality with great sparkle”

Brightness/Shine/Glow12%

“nice shine”

Value For Money12%

“Reasonably priced”

Size-Overall12%

“Great stubs and the perfect size”

Precious Gemstone9%

“Fantastic deal for beautiful diamonds”

Advertised Vs Actual Product6%

“As advertised”

Comfort-Overall5%

“They are comfortable”

Color3%

“color looks flawless”

Shape/Style2%

“I really like this simple and versatile style”

Locking Mechanism2%

“The setting feels secure”

What buyers complain about

Size-Overall35%

“The chain is short”

Quality-Overall9%

“could use better quality control”

Durability8%

“Will Fall Off Of your ear within days”

Chain/Key Quality5%

“it wasnt, Chain does not stay clasped as it should”

Brightness/Shine/Glow4%

“One of them glows in the dark”

Ease Of Use4%

“it is definitely hard to open”

Color4%

“the clasp is kinda black”

Value For Money2%

“Not worth the price at all”

Locking Mechanism2%

“Backs are not secure”

Allergies2%

“My skin's super sensitive”

Top return reasons

Size-Overall67%

Advertised Vs Actual Product7%

Metal Authenticity5%

Quality-Overall3%

Brightness/Shine/Glow1%

Color1%

Value For Money1%

Shape/Style1%

Wrong Dimensions1%

Functionality-Overall1%

Common lab grown diamond questions

Is lab grown diamond profitable to sell on Amazon United States?: The niche generates $37K/yr across 70 tracked products. 10 of 22 products launched in the last 360 days are still selling. 90-day search growth is -14.6%. Flapen's verdict: Skip it (39/100).
How competitive is the lab grown diamond niche?: 21 brands and 32 sellers compete. The top 5 products take 28% of clicks and top 5 brands hold 73% of demand.
What do buyers complain about in lab grown diamond?: Top complaints mined from reviews: Size-Overall, Quality-Overall, Durability. The return rate is 3.9%.
What does it cost to enter the lab grown diamond niche?: Listings span $12.60–$1048.88; the average listing price is $200.48 (sweet spot $15–$100). The average incumbent carries 216 reviews — the moat a new listing must climb.