Lab-grown diamonds have moved from curiosity to category-defining product in under a decade. For trade buyers navigating today's market, understanding the supply-demand dynamics is no longer optional.
Supply Has Outpaced Demand
Between 2022 and 2025, global lab-grown diamond production capacity grew by over 300%. The majority of this growth came from China and India, with CVD (Chemical Vapour Deposition) now accounting for roughly 70% of lab-grown output. This surge has compressed wholesale prices significantly — in some carat ranges, lab-grown rough is trading at 90%+ below natural equivalents.
What This Means for Dealers
For B2B buyers, the opportunity is in positioning. Natural and lab-grown diamonds now occupy fundamentally different market segments, and consumer awareness has grown accordingly.
Key considerations:
- Lab-grown diamonds are increasingly positioned as fashion/accessible luxury rather than heirloom investment
- Natural diamonds continue to command premiums, especially in coloured and rare fancy shapes
- Dual-inventory strategies — offering both natural and lab-grown alongside clear educational content — are proving effective for leading retailers
Certification Remains Critical
GIA and IGI have both expanded their lab-grown grading infrastructure. For trade buyers, ensuring all lab-grown goods carry independent third-party certification is non-negotiable — both for consumer confidence and for resale value assurance.
The Amstela Perspective
We supply both GIA/IGI-certified natural and lab-grown diamonds with full provenance documentation. Our trade desk can advise on current available inventory and assist with building a balanced natural vs. lab-grown offering for your market.
To discuss trade pricing or review available inventory, contact your regional Amstela trade desk.
