1ct Certified Lab-Grown Diamonds
Frequently Asked Questions (FAQs)
A 1-carat lab-grown diamond of good quality (colour G, clarity VS1) typically costs €800 to €1,500. This compares to €4,000 to €6,000 for an equivalent natural diamond, a gap of roughly 60 to 85%.
Yes, 1-carat stones show the most price stability of any carat weight in 2026. After sharp declines between 2020 and 2024, wholesale prices for 1-carat stones have held steady, showing resistance to further drops as production costs settle close to actual cost.
Yes. A 1-carat lab-grown diamond is graded on the same 4Cs standard as any other carat weight: cut, colour, clarity, and carat weight. IGI applies identical grading criteria regardless of size.
LabGems stocks 1-carat lab-grown diamonds across round, oval, cushion, princess, emerald, and pear shapes, in both certified and non-certified options.
A €500 minimum order applies across all LabGems purchases. A single 1-carat stone at typical pricing meets this threshold on its own, or can be combined with other shapes or carat weights.
LabGems 1 carat lab-grown diamonds give partners direct access to IGI-graded stock in one of the most requested carat weights for bridal and fine jewellery. This collection covers core shapes, round, oval, cushion, princess, emerald, and pear, across a full range of colour and clarity grades. Jewellers sourcing 1-carat stones can rely on consistent grading, certification, and current pricing, whether filling a bridal order or matching an existing piece.
Sourcing and Certification Standards
1-carat lab-grown diamonds in LabGems certified collection are graded and certified through IGI, with reports confirming full 4Cs grading and growth method, CVD or HPHT. Non-certified 1-carat stock is also available for buyers who do not require individual certification. In-stock orders dispatch from Antwerp within 1 business day following payment verification. FedEx delivery across Europe typically takes 1 to 3 days, for a total duration of 2 to 4 business days. A €500 minimum applies across all purchases. Browse current 1-carat stock through the certified diamond search page.
1 Carat Stock Demand
A 1-carat diamond remains the most requested centre stone size for engagement rings across Europe, which makes consistent stock at this weight a priority for most jewellers. Price stability at 1 carat also makes it easier to set retail pricing with confidence, since this weight has shown the least movement of any carat range through 2026. Round and oval shapes see the highest demand at 1 carat specifically, though all core shapes remain available.
Price Discounts on 1 Carat Diamonds
LabGems offers 1-carat diamonds at wholesale pricing, with discounts applying automatically based on order volume through the LabGems Portal. Higher order volumes move an account into a higher discount tier, reducing the price paid per stone.
Selection Notes for 1 Carat Inventory
- Utilise 1-day dispatch for immediate order fulfillment and customer deadlines
- Browse verified Antwerp stock for complete retail confidence and supply chain reliability
- All certified 1-carat stones include IGI reports for professional transparency
- Combine 1-carat stones with other carat weights or shapes to build a full bridal range
- Browse shapes including round, oval, cushion, princess, emerald, and pear cuts