Certified Lab-Grown HPHT Diamonds
Frequently Asked Questions (FAQs)
In-stock certified lab-grown diamonds from LabGems ship within 1 business day once payment is verified, as the stones are physically held in Antwerp. FedEx delivery within Europe then takes 1 to 3 days, for a typical total of 2 to 4 days. Custom specifications outside active stock ship within 7-10 business days.
Stones in the LabGems in-stock collection are supplied with IGI certification confirming lab-grown origin and 4Cs grading. Buyers who do not require individual certificates can source non-certified equivalents from the same Antwerp supply chain at roughly 20% below certified pricing. Both options dispatch from active stock within 1 business day of verified payment.
Yes. LabGems certified lab-grown diamonds are real diamonds with the exact same chemical, physical and optical properties as mined diamonds, grown using CVD or HPHT methods. Each is graded on the 4Cs and certified by IGI. In-stock certified stones ship within 1 business day of verified payment, with a €500 minimum order value.
Yes. The LabGems certified diamond search shows real-time Antwerp inventory filtered by shape, carat, colour and clarity, so trade buyers can confirm availability before ordering. Listed stones are IGI certified and in stock, dispatching within 1 business day of verified payment. A €500 minimum order value applies across all purchases.
A €500 combined minimum order value applies across all LabGems certified diamond purchases. Stones can be combined across shapes from active inventory to meet the threshold. For buyers needing alternative specifications, coloured lab-grown diamonds are also available from current stock and dispatch within 1 business day of payment.
LabGems in-stock certified lab-grown diamonds provide trade partners with immediate access to our most refined, IGI-graded inventory. This collection represents our curated selection of high-velocity stones—including round brilliant, oval, cushion, radiant, and emerald cuts—stored within our active Antwerp distribution centre. By maintaining a deep stock of certified stones across core carat weights, colours, and clarities, we enable jewellers to execute bespoke commissions, fulfill engagement ring orders, and maintain essential bridal inventory with reliable, ready-to-ship speed.
Sourcing and Certification Standards
Every diamond in our in-stock collection is pre-verified in our Antwerp facility and accompanied by official IGI certification. Reports confirm complete 4Cs grading, growth origin (CVD or HPHT), and post-growth treatment status. In-stock orders dispatch from our Antwerp facility within 1 business day following payment verification; FedEx delivery across Europe typically spans 1 to 3 days, resulting in a total lead time of 2 to 4 business days. A €500 minimum applies across all purchases. Browse real-time stock through the certified diamond search platform.
Quality Assurance and Selection
While prioritising immediate availability, we uphold rigorous selection criteria; all in-stock diamonds undergo internal screening for Type IIa purity, optical brilliance, and cut symmetry to ensure consistent performance. This certified collection is curated to bridge the gap between volume manufacturing and high-end bespoke retail requirements. For specific stone attributes not found in our in-stock selection, please consult our dedicated shape-specific collections.
Wholesale Economics and Profitability
LabGems in-stock certified diamonds provide trade partners with competitive, transparent wholesale pricing, facilitating superior retail margin expansion on engagement and luxury jewelry. Maintaining active stock levels enables jewellers to minimize procurement lead times for critical bridal inventory. Explore additional trade-only purchasing opportunities within our special promotions collection.
Selection Notes for Certified 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 stones 0.30ct+ include IGI reports for professional transparency
- Combine diamond purchases with other gemstones to satisfy the €500 minimum
- Browse shapes including round, oval, radiant, cushion, and emerald cuts