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Stage 01 Diamond Cultivation

From Seed Crystal to Premium Rough Diamonds

Our lab-grown diamonds are cultivated using advanced CVD and HPHT technology under precisely controlled environments, ensuring uniform crystal quality and maximum brilliance. Each growth cycle is carefully monitored by experienced technicians to maintain color, clarity, and crystal structure consistency.

We use sustainable, traceable production processes that minimize environmental impact while maintaining scalable output for global jewelry supply. Every rough diamond is inspected before moving to cutting and polishing, ensuring only the highest-quality stones enter production.

  • Advanced CVD reactors for high-purity diamond growth
  • HPHT production systems for stable crystal formation
  • Post-growth treatment support for color optimization
  • Traceable rough diamond supply for manufacturers and cutters
CVD Lab Diamond Manufacture

2 Types

CVD & HPHT Growth Technology

24/7

Controlled Growth Monitoring

99%+

Crystal Structure Consistency

100000+

Annual Diamond Output

Stage 02 Cutting & Polishing

From Rough Diamonds to Brilliant Stones

Rough diamonds are meticulously cut and polished to optimize light performance, brilliance, and symmetry. Skilled craftsmen apply multi-step polishing procedures to bring out the best optical qualities in each diamond.

Our combination of traditional expertise and advanced machinery ensures precision and consistency, even for bulk production and custom shapes. Every finished diamond is carefully checked for surface quality and proportion accuracy before grading.

  • Precision mapping and cutting optimization systems
  • Round and fancy shape diamond processing support
  • Multi-step polishing for enhanced brilliance and symmetry
  • Strict surface and proportion quality inspection standards
Rough Lab Diamond Need Cutting & Polishing Process

10+

Years Cutting Experience

20+

Fancy Shape Options

8-Step

Precision Polishing Process

0.01mm

Cutting Accuracy Control

Stage 03 Diamond Grading

Certified Quality for Global Markets

Finished diamonds are graded according to international 4C standards to guarantee color, clarity, cut, and carat accuracy. Certificates provide full verification and traceability, giving buyers confidence in every purchase.

We support multiple certification bodies, including IGI, GIA, NGTC, and GEM/GCAL, offering global recognition for retail and wholesale markets. Online certificate verification ensures transparency, and every stone’s report is laser-inscribed for identification.

  • International 4C grading documentation support
  • IGI, GIA, NGTC, and GCAL certification options
  • Laser inscription matching for certified diamonds
  • Online verification systems for global trade confidence
Loose diamonds certified and graded by IGI or GIA

4C

International Grading Standards

4 Types

Certification Options Available

100%

Laser Inscription Matching

24 Hours

Online Certificate Verification

Stage 04 Jewelry Manufacturing

From CAD Design to Finished Jewelry

Certified diamonds are assigned to jewelry production orders and transformed into finished pieces. CAD modeling, precision casting, stone setting, and polishing create high-quality jewelry for OEM, ODM, and retail clients.

Every piece undergoes strict quality checks, metal hallmarking, and final inspection to ensure craftsmanship and consistency.

  • 3D CAD modeling and jewelry rendering support
  • In-house casting and wax mold production systems
  • Professional prong, bezel, pave, and channel settings
  • Final polishing, hallmarking, and quality inspection
Jewelry Manufacturing

500+

Jewelry Design SKUs

4 Types

Metal Material Options

5 Types

Stone Setting Styles

10 PCS

OEM Minimum Order

Stage 05 — Quality

Nothing Ships Without Passing Six Checks

Every loose diamond and every finished jewelry piece passes a structured, documented quality inspection before leaving our facility. We do not rely on final-stage visual inspection alone — quality is verified at each production transition point.

Rough Diamond Inspection

Screen rough crystals for clarity, cracks and inclusions, discard defective stones to lay a solid foundation for cutting.

Cut & Polish Grading Inspection

Preliminary check on cut, brilliance, dimension, symmetry and polishing precision to fix polishing defects.

Diamond 4C Standard Testing

Verify carat weight, color, clarity and cut, matching all certificate specifications.

Metal Raw Material Inspection

Test metal purity, hardness, oxidation and impurities to prevent low-quality metal setting.

Setting Firmness & Appearance

Examine prongs/bezel tightness, scratches, dents, symmetry and surface polishing flaws.

Pre-Delivery Verification

Cross-check dimensions, side stones, certificate info and packaging before qualified shipment.

Stage 06 — Offices & Factory

Where We Operate

HPHT Diamond Workshop

HPHT Diamond Workshop

CVD Diamond Workshop

CVD Diamond Workshop

Office in Zhengzhou City

Office in Zhengzhou City

Jewelry Setting Factory

Jewelry Setting Factory

Let's Connect

Whether you're sourcing certified lab-grown diamonds, ordering custom jewelry, or inquiring about professional training — our team responds within 24 hours to every request.

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