We Don't Sell Diamonds — We Represent Buyers
Your Procurement Advocate in China's Diamond Supply Chain
Independent sourcing from the world's largest lab-grown diamond cluster. We inspect, negotiate, and deliver — with your interests at the center of every decision.
Why a Buyer's Advocate?
The diamond supply chain is built for sellers. We built something for you.
We Don't Own Inventory
No factory quota to hit. No warehouse to clear. When we recommend a stone, it's because it's right for your market — not because it's sitting on our shelf.
We're On the Ground in Henan
We walk into factories. We compare stones against master sets. We catch quality variance before it ships — not after it lands at your door.
We Know Both Technologies
HPHT or CVD? The answer depends on your market, not on which technology our factory happens to own. We source both, so our advice is actually impartial.
We Bridge the Certificate Gap
IGI grades differently from GIA. We know exactly where the gaps are and how to source so your stones pass re-grading — wherever your customers are.
Knowledge Center
Everything we know about sourcing lab-grown diamonds — written for buyers, not sellers.
The 4Cs: A Buyer's Complete Guide
Where to save, where to invest, and where suppliers hide their margins. The procurement hierarchy they won't tell you.
Read guide →CVD vs HPHT: The Procurement Truth
Four real-world scenarios with clear recommendations. Which technology wins for your specific market?
Read comparison →Inside China's Diamond Heartland
The five groups every buyer should know. Factory-level intelligence from inside the Henan cluster.
Read deep-dive →What Our Clients Achieve
About Kunlun Growth
Founded by Marshall Lee — Veteran, Sourcing Specialist, Your Man in Henan
Kunlun Growth is a buyer-side procurement firm specializing in lab-grown diamonds from China's Henan industrial cluster. We are not a factory. We are not a trading company. We are your advocate — physically present in the supply chain, negotiating on your behalf, inspecting on your behalf, and ensuring what lands at your door is exactly what you ordered.
Our founder, Marshall Lee, brings military-grade execution standards to diamond procurement. The same discipline that served in uniform now serves your supply chain: precision, accountability, and zero tolerance for quality surprises.
Our Operating Principles
- No inventory bias: We don't push what's sitting on a shelf. We source what you need.
- Physical verification: Every batch is inspected in person before shipment. No exceptions.
- Transparent pricing: We show you the factory cost, our fee, and nothing else.
- Technology-agnostic: HPHT or CVD — we recommend based on your market, not our equipment.
Start a Conversation
Tell us what you're looking for. We'll tell you honestly whether we can help — and exactly how.