Custom wholesale flower necklace for women with 925 silver gold-plated pendant

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    Custom wholesale flower necklace for women with 925 silver gold-plated pendant

    Comprehensive Case Study: Korean Client’s Mass Customization of 925 Silver 18K Gold-Plated Floral Necklace at JINGYING Jewelry Company

    Executive Summary

    We will share the complete production journey of a high-volume customized floral necklace order from a prominent Korean jewelry retailer at JINGYING Jewelry Company. Covering the entire process from design conceptualization to final delivery, this document serves as an industry benchmark for cross-border OEM jewelry production between China and South Korea.


    1. Project Background & Market Context

    1.1 Korean Jewelry Market Trends (2023)

    • Consumer Preferences: 72% of Korean women aged 20-35 prefer dainty floral designs (Korean Fashion Institute)
    • Material Trends: 925 silver with 18K gold plating dominates 58% of mid-range market
    • Pricing Sensitivity
      50−

      50−120 retail price point shows strongest demand

    1.2 Client Profile

    • Retailer: 3rd largest accessory chain in South Korea
    • Order Specifications:
      • Quantity: 15,000 pieces
      • Material: 925 silver with 2.5μm 18K gold plating
      • Design: 3-layer floral pendant (28mm diameter)
      • Delivery: 60-day turnaround

    2. Technical Production Process

    2.1 Design Engineering Phase

    2.1.1 3D Modeling Adjustments for Korean Aesthetics

    • Petal thickness reduced from 1.2mm → 0.8mm for delicate appearance
    • Added 5° upward curl to petal edges (Korean-style “alive” look)
    • CAD file shrinkage compensation: 1.04x multiplier

    2.1.2 Prototype Validation

    • 3 versions tested with Korean focus groups
    • Version B selected (balanced weight at 8.2g)

    2.2 Metal Fabrication

    2.2.1 Silver Casting

    • Used vacuum-assisted lost-wax casting
    • 925 silver alloy formula: 92.5% Ag, 6% Cu, 1.5% Ge (anti-tarnish)
    • Casting yield rate: 89.7% (industry avg: 82%)

    2.2.2 Post-Casting Processing

    • Tumbling: 8 hours in stainless steel media
    • Laser welding for petal assembly
    • Micro-sanding: 400 → 1500 → 3000 grit progression

    2.3 Electroplating Process

    2.3.1 18K Gold Plating Specification

    • Bath composition: 75% Au, 15% Ag, 10% Cu
    • Plating thickness: 2.5μm (industry standard: 1.5μm)
    • Adhesion test: Passed 50x rub test (ASTM B571)

    2.3.2 Quality Control Measures

    • XRF testing every 50 pieces
    • Salt spray test: 48 hours @ 5% NaCl
    • Color consistency: ΔE<1.5 (measured by spectrophotometer)

    3. Production Challenges & Solutions

    3.1 Cultural Adaptation Issues

    • Problem: Initial petal design too “bold” for Korean tastes
    • Solution: Implemented Korean design consultant review system

    3.2 Technical Hurdles

    • Challenge: Plating peeling at petal joints
    • Fix: Added pulse-reverse electroplating cycle

    3.3 Logistics Complexity

    • Issue: Korean customs rejection risk for nickel content
    • Prevention: Conducted SGS testing before shipment

    4. Quality Assurance Protocol

    4.1 In-Process Inspection

    Checkpoint Method Acceptance Criteria
    Wax model 3D scan ±0.05mm tolerance
    Silver casting XRF 92.5-93.5% Ag
    Plating Cross-cut test No flaking after tape test

    4.2 Final Inspection

    • 100% visual inspection under 10x magnification
    • Random 5% sample for accelerated wear test
    • Packaging integrity check (drop test from 1.2m)

    5. Commercial Terms & Logistics

    5.1 Pricing Structure

    • Base price: $18.75/unit (FOB Shenzhen)
    • Volume discount: 7% for orders >10,000pcs
    • Plating upgrade: +$2.10/unit for 2.5μm vs standard 1.5μm

    5.2 Shipping & Customs

    • Used Korea-China FTA certificate
    • Total duty savings: $3,210
    • Air freight for samples → Sea freight for bulk

    6. Client Feedback & Market Performance

    6.1 Retail Performance

    • Sold out in 3 weeks
    • 4.8/5.0 average online rating
    • 23% repeat purchase rate

    6.2 Client Testimonial

    “JINGYING’s understanding of Korean market preferences exceeded expectations. Their technical capability in producing delicate floral designs matched with rigorous quality control makes them our preferred partner for silver jewelry.” – Kim Soo-Young, Purchasing Director


    7. Key Success Factors

    1. Cultural Sensitivity: Adapted designs to Korean aesthetic preferences
    2. Technical Precision: Maintained 0.05mm tolerance throughout production
    3. Quality Investment: Extra 1μm gold plating increased durability by 40%
    4. Regulatory Compliance: Proactively addressed Korean customs requirements

    8. Industry Benchmark Data

    Metric JINGYING Industry Average
    Defect rate 0.8% 2.5%
    Plating durability 18 months 9-12 months
    On-time delivery 98% 89%

    Conclusion: A Model for Korea-China Jewelry OEM

    This project demonstrates how deep technical expertise combined with cultural market understanding creates successful international jewelry collaborations. JINGYING’s systematic approach to:

    • Design localization
    • Precision manufacturing
    • Proactive quality control
    • Logistics optimization

    …provides a replicable model for cross-border jewelry production. The 18% higher client satisfaction score compared to industry average confirms the effectiveness of this methodology.

    Recommendation: Korean buyers should prioritize manufacturers with proven Korea-specific experience and invest in extra plating thickness for premium market positioning.

     


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