About Us

Leveraging Henan's global core lab-grown diamond (LGD) production strengths, HN LGD TC operates China's largest and most credible one-stop platform for LGD rough diamond trading. It delivers efficient, transparent and low-cost industrial chain circulation solutions via direct source supply, full product coverage and stable delivery. The center integrates top local HPHT and CVD manufacturers including Sino-Crystal, Zhongnan Diamond, Yellow River, LILIANG Diamond, SFD and etc, enabling direct factory supply and full quality traceability. Its full-spec rough diamonds with large carat, high color and high clarity stably serve jewellery, industrial and research procurement scenarios.
To streamline industrial docking and boost trading efficiency, the center regularly hosts high-quality Rough diamond Viewings. It connects first-hand factory spot goods with global premium cutting and polishing factories, forming a full trading process from rough viewing and negotiation to signing and delivery. This mechanism greatly cuts matching costs, shortens procurement cycles and secures transaction safety.

Supported by national industry resources, the center has jointly launched the SDE Henan Service Center with the Shanghai Diamond Exchange, establishing compliant diamond trading channels and cross-border services. It enables local processing, one-stop customs clearance and efficient regulated transactions, improving convenience and lowering overall costs, while providing authoritative compliance support for domestic and cross-border rough diamond trade.
Relying on four core strengths: direct source supply, quality control, on-site matching and compliant services, HN LGD TC aims to be a global lab-grown rough diamond trading hub. It facilitates industrial cost reduction and collaborative upgrading, transforming Henan from a major global LGD production base into a core value hub.

HN LGD TC has invested USD 10 million to build a dedicated intelligent diamond cutting & polishing factory. It is equipped with over 50 state-of-the-art laser cutting machines and staffed by more than 100 experienced polishers, achieving a monthly processing capacity exceeding 30,000 carats.
The factory adopts advanced smart processing technology for standardized high-precision cutting and polishing. It steadily produces premium jewellery-grade polished diamonds, improves the local value-added processing capacity, and further strengthens Henan's complete lab-grown diamond industrial ecosystem.

HN LGD TC has built an integrated jewellery design & setting hub dedicated to original design, bespoke fine jewellery manufacturing and industry creative collaboration. Spanning about 1,000 square meters with a total investment of USD 1 million, the facility houses six specialized workshops focused on artistic design development and precision jewellery setting, transforming premium lab-grown diamonds into distinctive finished jewellery pieces.
It partners with 30 independent jewellery design studios and 20 professional craft studios, offering original customized design, high-precision stone setting and innovative new product development services. By hosting themed lab-grown diamond design competitions, the center gathers elite designers and master craftsmen, developing signature setting techniques and creative styles to elevate brand differentiation and drive sustainable jewellery innovation.

Our in-house testing and grading center collaborates with authoritative institutions including IGI, GIA, NGTC and etc, delivering standardized sorting, grading, quality inspection and certification services for polished lab-grown Diamonds & Jewelry. Spanning 300 square meters with a total investment of USD 1 million, it delivers rigorous quality assurance throughout the whole procurement, trading and delivery process.
We also provide flexible third-party certification support in line with global market standards. Independent verification of diamond grades and quality data ensures full product traceability, greatly enhancing transaction transparency and building long-term trading credibility.

We have established a mature nationwide omnichannel distribution ecosystem, underpinned by deep long-term strategic partnerships with premier B2B jewellery distributors and industry key players. Our flagship offline exhibition hubs in Shanghai, Beijing and Shenzhen serve as premium experience centers, enabling face-to-face communication, product preview, customised consultation and seamless business collaboration.
Connecting upstream lab-grown diamond resources directly with downstream brands, retailers and jewellery manufacturers, this integrated network ensures consistent high-quality supply, flexible order fulfilment and rapid market penetration. We build trusted, sustainable win-win partnerships across the jewellery value chain and expand global market influence for fine lab-grown diamond products.