How a Small Jeweller Can Start Selling Lab-Grown Diamonds
How a Small Jeweller Can Start Selling Lab-Grown Diamonds
Quick answer: The European lab-grown diamond market is estimated at over $10 billion in 2026, growing at roughly 12.5% a year, with the under-2-carat segment most small jewellers stock holding around 71% of European demand (Market Data Forecast). Entry does not require a large commitment. Get five things right, range, certification, sourcing, a test order, and pricing, and you can list, sell, and fulfil a first piece within days.
Why the timing works in your favour
Demand is growing. European market analyses put annual growth at roughly 12.5% through 2034, ahead of most fine jewellery retail. The up-to-2-carat tier, covering the engagement rings, everyday pieces, and gifting jewellery a small retailer actually sells, holds around 71% of European demand (Market Data Forecast). Market-size estimates vary between research houses, so treat the direction as the signal rather than any single figure.
Your cost of entry has fallen. Wholesale lab-grown prices dropped 13% year-on-year in Q2 2026, steepest in larger and fancy-shaped stones (Edahn Golan, Q2 2026 LGD Wholesale Price List). The rounds and fancy shapes under 2 carats you are most likely to start with are priced better than a year ago. See the 2026 wholesale pricing trade guide.
What to weigh before you commit
Price decline cuts both ways. The falling prices that lower your entry cost also mean lab-grown stones hold less value over time than natural diamonds. Start narrow, avoid large long-term stock.
Consumer perception is still settling. Some customers question lab-grown resale value. Sell it transparently on its merits, affordability, certified quality, ethical sourcing, and not as an investment.
Disclosure standards vary across Europe. Guidance on describing lab-grown in retail is not uniform across EU markets. Always sell with the growth method disclosed and the certificate available where the stone is certified.
The five things to get right
1. Decide where lab-grown fits
Decide how the category sits alongside what you already sell: a lower-price alternative within existing designs, a distinct line with its own display, or one or two popular shapes to start. Starting narrow is the lowest-risk entry. LabGems' fancy-shaped diamond collection lets you test two or three options without overcommitting.
2. Get the certification right
This changed significantly in October 2025. GIA no longer issues 4Cs grades for lab-grown diamonds. Since 1 October 2025 it assigns only a "Premium" or "Standard" quality assessment, or no report at all. IGI, which certifies roughly 65% of lab-grown diamonds globally (Rapaport), continues to issue full colour, clarity, and cut grades.
For a small jeweller, that makes the decision simple: if you need to describe a stone to a customer by specification, you need an IGI report. Our GIA vs IGI guide covers the full change.
Whatever the lab, confirm the report discloses growth method (CVD or HPHT), includes a clarity plot, and verifies on the lab's own portal.
3. Source from a supplier built for smaller orders
Most wholesale suppliers are built for volume, with minimums that force you to commit before you know a shape sells. Compare suppliers on four things: minimum order, certification, dispatch time, and payment terms.
| Comparison point | LabGems |
|---|---|
| Minimum order | €500 combined |
| Goods | IGI-certified and non-certified lab-grown diamonds |
| Sourcing | Antwerp Diamond District |
| Pricing | Published in EUR, no conversion cost |
| Dispatch | In-stock ships within 1 business day, delivery 1 to 3 days |
| Payment terms | Net-30 / Net-60 for approved accounts |
| Documentation | VAT documentation included |
We supply both certified and non-certified goods. Certified stones suit centre stones and higher-value pieces. Non-certified goods price lower and suit melee, accent stones, and volume work. For a first order, that flexibility lets you test both without overpaying for certification you may not need on every stone.
4. Place a test order before you scale
Request pricing on your specifications, get a quote within one business day, and place a test order at the minimum to verify quality and documentation. Browse the certified diamond search platform for live stock first. Once you have sold through, you can establish an ongoing relationship with volume pricing and Net-30 or Net-60 terms.
5. Price for your margin, not just your cost
Wholesale prices have fallen faster than retail, so retailers who buy and price well are capturing a wider margin than a year ago. Golan reports that demand has held up even as prices fell, with lab-grown jewellery sales at US specialty retailers up 24% in Q2 2026 on higher unit sales (JCK). Falling cost against holding demand is the margin opportunity. See the wholesale buying guide for retailers.
What a first order looks like
Pick one or two shapes your customers already ask for, request pricing on a small run at your target carat range, place a test order near the €500 minimum, and confirm quality on arrival before reordering. In-stock orders ship within one business day and arrive in one to three days by courier.
Start with a single order
A €500 minimum, certified and non-certified options, EUR pricing, and Antwerp dispatch within one business day make LabGems a practical starting point for a first-time entrant.
Request wholesale pricing and we will quote against live inventory within one business day.
Frequently asked questions
How much does it cost to start selling lab-grown diamonds as a small jeweller?
A first order can start at LabGems' €500 combined minimum, with in-stock goods shipping within one business day. No volume commitment or recurring order is required.
What certification should a new lab-grown retailer look for?
IGI. Since 1 October 2025, GIA no longer issues 4Cs grades for lab-grown diamonds, assigning only "Premium" or "Standard". IGI certifies roughly 65% of lab-grown diamonds globally and continues to issue full colour, clarity, and cut grades.
Does LabGems only sell certified diamonds?
No. We supply both IGI-certified and non-certified lab-grown diamonds.
Is now a good time to enter the lab-grown diamond category?
European demand is growing at roughly 12.5% annually while wholesale prices fell 13% year-on-year in Q2 2026, so entry cost has dropped as the market expands. The main risk is price decline over time, which favours a narrow first order and steady sell-through.
