Custom Production of 45,000 Rose Gold Pearl Earrings for a South Korean Client at JINGYING Jewelry

Spis treści
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Wstęp 
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Client Background & Project Scope 
- 
Projekt & Material Selection Process 
- 
Production Planning & Quality Control Systems 
- 
Manufacturing Execution 
- 
Logistyka & International Shipping Considerations 
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Lessons Learned & Process Improvements 
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Wniosek: Keys to Successful Large-Scale Custom Jewelry Manufacturing 
1. Wstęp
This white paper documents JINGYING Jewelry’s complete workflow for fulfilling a major custom order of 45,000 rose gold-plated pearl earrings for a premium South Korean accessories brand. The case study examines:
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Special requirements of the Korean luxury market 
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Technical challenges in mass-producing consistent pearl jewelry 
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Solutions developed for quality assurance at scale 
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Cultural considerations in Korean business partnerships 
Industry professionals will gain actionable insights into:
✔ Managing 5-figure custom jewelry orders
✔ Cross-cultural client management strategies
✔ Optimizing production efficiency without sacrificing craftsmanship
2. Client Background & Project Scope
2.1 About the Client
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Market Position: Leading mid-tier Korean fashion jewelry brand 
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Customer Demographics: Women aged 25-40, urban professionals 
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Order Specifications: - 
Ilość: 45,000 pary 
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Styl: 8mm freshwater pearl with rose gold-plated brass settings 
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Dostawa: 3 phased shipments over 5 miesiące 
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Zgodność: Must meet Korea’s KC certification standards 
 
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2.2 Key Challenges Identified
| Wyzwanie | Solution Approach | 
|---|---|
| Pearl color consistency across bulk order | Sourced entire pearl lot from single Vietnamese farm | 
| Rose gold plating durability requirements | Implemented 3-layer PVD coating process | 
| Korean packaging regulations | Developed bilingual packaging with KC mark | 
3. Projekt & Material Selection Process
3.1 Collaborative Design Development
Faza 1: Concept Alignment
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Client provided mood boards emphasizing “soft luxury” estetyka 
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3 rounds of CAD revisions to perfect setting proportions 
Faza 2: Testowanie materiałów
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Compared 5 pearl suppliers for luster consistency 
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Tested 3 gold plating thicknesses (0.5μm vs 1μm vs 2μm) 
Final Specifications:
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Perły: AA+ grade 8mm Vietnamese freshwater 
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Metal: Lead-free brass base with 2μm rose gold PVD coating 
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Ustalenia: Surgical steel posts for hypoallergenic wear 
4. Production Planning & Kontrola jakości
4.1 Factory Capacity Analysis
| Production Stage | Standard Capacity | Scaled Solution | 
|---|---|---|
| Pearl drilling | 2,000/dzień | Added night shift + 3 new laser drills | 
| Metal casting | 1,500 units/day | Partnered with secondary foundry | 
| Inspekcja jakości | 20% próbowanie | Implemented 100% pearl inspection station | 
4.2 Multi-Stage QC Protocol
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Inspekcja materiałów przychodzących (XRF testing for metal composition) 
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Kontrole w trakcie procesu (Hourly plating thickness measurements) 
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Final Audit (3-person inspection team, 10% destructive testing) 
5. Manufacturing Execution
5.1 Phased Production Timeline

5.2 Efficiency Innovations
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Automated Pearl Sorting: AI vision system reduced sorting time by 60% 
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Modular Fixtures: Quick-change tooling allowed 15% faster style changeovers 
6. Logistyka & Zgodność
6.1 Export Documentation
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KC Certification (Korean Safety Standards) 
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CITES Certificate for pearl exports 
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3PL Partnership with DHL for temperature-controlled pearl transport 
6.2 Rozwiązania w zakresie opakowań
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Retail Boxes: FSC-certified paper with soy ink printing 
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Shipping Configuration: 150 master cartons (300 units each) 
7. Lessons Learned
7.1 Key Improvements for Future Orders
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Earlier Pearl Procurement (6-month lead time vs original 3 miesiące) 
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Dual-Source Metal Supply (Mitigated brass shortage risks) 
7.2 Client Feedback Highlights
“JINGYING’s responsiveness to our last-minute packaging change request saved our Q4 launch timeline.”
Ms. Lee, Purchasing Director
8. Wniosek
This project established JINGYING’s capability to deliver:
✅ Large-scale consistent quality (0.8% defect rate vs industry 3% average)
✅ Cultural customization (Korean-language QC documents)
✅ Technical compliance (Met all KC and EU nickel directives)
For brands considering bulk custom jewelry production, this case demonstrates the critical importance of:
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Early supplier collaboration 
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Modular production planning 
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Cultural intelligence in client relations 
