Lab-Grown Diamond Wholesale Prices Europe: 2026 Guide
Lab-Grown Diamond Wholesale Prices in Europe: 2026 Trade Guide
A pricing guide for European jewellery retailers, manufacturers, and D2C brands.
Quick answer: Wholesale lab-grown diamond prices fell 13% year-on-year in Q2 2026, but the pace of decline is slowing (Edahn Golan, Q2 2026 LGD Wholesale Price List). For trade buyers that means a lower cost base with less holding risk. LabGems supplies both IGI-certified and non-certified lab-grown diamonds from Antwerp, priced in EUR, with a €500 minimum and next-business-day dispatch on in-stock goods.
The 2026 headline: wholesale down 13%, decline decelerating
According to the Q2 2026 LGD Wholesale Price List, compiled by diamond industry analyst Edahn Golan, wholesale lab-grown diamond prices declined 13% year-on-year. The index has fallen 96% since tracking began in July 2018 (Professional Jeweller).
The trajectory matters more than the headline. Golan previously reported a 14% year-on-year decline for Q1 2026 and 26% across 2025, so the rate of decline is easing (JCK). Low prices with a slowing decline is the favourable combination: you capture the lower cost base without the same risk of holding stock that loses further double-digit value.
Wholesale prices by carat tier
The direction of movement reversed depending on carat weight and shape. All figures from the Q2 2026 LGD Wholesale Price List.
| Segment | Q2 2026 YoY movement | Sourcing implication |
|---|---|---|
| 1.00 ct rounds | Up 1% | Stable; predictable margin planning |
| 1.50-1.99 ct rounds | Down 11% | Softer cost base for mid-size centre stones |
| 2.00 ct rounds | Down 20% | Steepest round decline; strongest margin opportunity |
| Fancy shapes (average) | Down 17% | Hearts, marquises, ovals, pears fell further than rounds |
The stones that fell hardest, larger rounds and fancy shapes, historically carried the highest wholesale margins, which left them most exposed to pressure. The 1-carat round firmed by 1%. Check live availability on the certified diamond search platform.
What sits behind every wholesale quote
| Factor | What it controls |
|---|---|
| Carat weight | Base cost per stone; not linear across tiers |
| Certification | Certified goods carry a premium over non-certified parcels |
| Cut quality and make | Optical performance and sell-through speed |
| Colour and clarity | Position on the grading scale |
| Growth method | HPHT typically trades at a discount to CVD |
The most common trade-buyer mistake is comparing quotes on carat weight alone. A parcel of IGI-certified, well-cut CVD rounds and a parcel of non-certified HPHT goods can sit far apart per carat and both be fairly priced.
Certified and non-certified: choosing the right goods
LabGems supplies both. Certified stones carry an IGI report and command a premium, and they are the right choice where your customer expects independent grading, typically centre stones and higher-value pieces. Non-certified goods price lower and suit melee, accent stones, and volume work where a report per stone is not commercially necessary.
The decision is a margin decision, not a quality one. Ask for both when you request a quote and price each against its end use.
Why lower wholesale cost widens your retail margin
Wholesale prices have fallen faster than retail prices, and that gap is your margin. Retailers have not passed the full wholesale decline through to the consumer. Golan notes that lab-growns have been defying traditional supply-and-demand expectations, with prices falling even though consumer demand has remained strong, and that total sales of lab-grown diamond jewellery at US specialty retailers increased 24% during the second quarter, driven by higher unit sales. Demand is holding while cost is falling. For the full retail-positioning breakdown, see the wholesale buying guide for retailers.
The one variable to watch
The wildcard in the Q2 data is that rough lab-grown prices increased. Golan describes these rises as opportunistic moves in a consolidating market rather than a response to consumer demand, and notes it will take several months to see whether they pass through the supply chain or meet resistance (Professional Jeweller). The practical read reinforces stocking now rather than assuming prices fall indefinitely.
How to buy from Antwerp on EUR terms
| Term | Detail |
|---|---|
| Goods | IGI-certified and non-certified lab-grown diamonds |
| Pricing | Published in EUR, no conversion cost for EU buyers |
| Minimum order | €500 combined |
| Dispatch | In-stock ships within 1 business day, FedEx 1 to 3 days |
| Payment terms | Net-30 / Net-60 for approved accounts |
| Documentation | VAT documentation with every order |
Request pricing on your specifications, place a test order, then establish an ongoing relationship with volume pricing. Start at the wholesale hub or browse the collections.
Frequently asked questions
How much do wholesale lab-grown diamonds cost in Europe in 2026?
Wholesale prices fell 13% year-on-year in Q2 2026 per the Edahn Golan LGD Wholesale Price List, with movement varying by tier: 2-carat rounds down 20%, 1.50-1.99ct down 11%, 1-carat rounds up 1%. LabGems quotes per parcel in EUR against live inventory.
Is now a good time to buy wholesale lab-grown diamonds?
The rate of decline is slowing, from 26% across 2025 to 14% in Q1 2026 and 13% in Q2, so you capture a low cost base with reduced holding risk. Wholesale has fallen faster than retail, widening the spread.
Does LabGems only sell certified diamonds?
No. We supply both IGI-certified and non-certified lab-grown diamonds. Certified stones suit centre stones and higher-value pieces; non-certified goods suit melee, accent stones, and volume work.
What is the minimum order?
€500 combined, with EUR pricing and next-business-day dispatch on in-stock goods.
