HN LGD TC.

One-Stop Lab Grown Diamond Solutions

Lab Grown Diamond Cultivation

Advanced HPHT and CVD technologies. Large-scale supply of rough diamonds.

Diamond Cutting & Polishing

Precision cutting and polishing of rough diamonds with advanced technology and craftsmanship.

Standard & Fancy Loose Diamonds

Mass production of standard cuts and custom-designed, fancy shape and color loose lab diamonds.

Jewelry Design & Setting

Jewelry design, setting, and finished product manufacturing by teams of master designers and craftsmen.

Standard and Fancy Shape Lab Grown Diamonds

Explore our full range of lab-grown diamonds by shape. Whether you need standard cuts for bulk orders
or fancy shapes for unique designs, we can meet your diverse requirements.

ROUND

PRINCESS

CUSHION

EMERALD

RADIANT

OVAL

PEAR

MARQUISE

ASSCHER

HEART

Our Product Portfolio

Lab-Grown Loose
Diamonds

Precision-cut lab grown diamonds are available in a wide range of shapes and sizes.

Lab-Grown
Colored Diamonds

Lab grown fancy color diamonds, including yellow, blue, pink, and other custom hues.

Lab-Grown
Gemstones

A selection of lab-grown gemstones, including emeralds, sapphires, rubies, and other popular varieties.

Lab-Grown Diamond Jewelry

Finished lab-grown diamond jewelry, including rings,
necklaces, earrings, and more.

Welcome to HN LGD TC.

We are an integrated lab grown diamond manufacturer & supply hub, backed up by China's largest and most complete cultivated diamond industry cluster. We provide end-to-end solutions from lab-grown diamond cultivation and stone cutting & polishing to jewelry design and manufacturing. Powered by globally leading full-facet laser cutting technology and professional teams, we ensure a highly efficient supply chain and meet the diverse needs of global jewelry brands, wholesalers, and custom projects.

About Us

100

Lab-grown Diamond
Production Equipment

1000

Laser Diamond Cutting
Machines

,000+

Skilled Diamond
Craftsmen

200

Renowned Jewelry
Designers

Integrated Production

From lab-grown diamond production to loose stone cutting & polishing and finished jewelry setting, we fully control the entire manufacturing process to ensure competitive pricing and stable supply.

Large Inventory Capacity

We maintain an inventory of 60,000 carats of lab-grown diamonds and over 30,000 finished jewelry designs, enabling fast fulfillment of large-volume loose diamond orders.

Technological Innovation

Our research center is staffed by leading Chinese professors and experts in superhard materials, dedicated to in-depth R&D and continuous innovation in lab-grown diamond technologies.

Quality Assurance

We adopt IGI diamond grading standards for unified quality classification, supported by standardized testing, grading, and batch verification systems, ensuring consistent quality across every shipment.

Quality You Can Trust

By maintaining a rigorous quality system and leveraging an industry-wide service platform uniting 166 lab-grown diamond enterprises across China, we ensure consistent, reliable diamonds for every order, giving our partners confidence in sourcing and long-term supply.

Learn More

Selected in Strict Accordance with 4C Grading Standards

Certified From Internationally Recognized Gemological Laboratories

Selected in Strict Accordance with 4C Grading Standards

Establish Lab-Grown Diamond Production Standards and Certification Centers

Superhard Materials Expert-Led Technological Breakthroughs

Co-Developed Lab-Grown Diamond Education System with IGI Training Institutions

OEM & ODM Solutions for Your Projects

Beyond production, we have delivered numerous custom projects from concept to full-scale production. Our integrated workflow enables
flexible, brand-ready manufacturing, helping partners efficiently bring unique lab-grown diamond products to market.