Quality Control System

🛠️ Uncompromising Quality Control – From Jewelry Mold to Final Piece

✅ Sobling’s Quality Control System: Where Precision Meets Passion

At Sobling, we believe true quality is never accidental — it’s engineered, inspected, and refined at every single step. As a leading silver jewelry manufacturer with 12+ years of experience, we’ve built a comprehensive quality control system that ensures every piece you receive reflects exceptional craftsmanship, safety, and reliability.

Whether you’re building a luxury brand or scaling a fast-moving jewelry business, our system is designed to eliminate defects, reduce return rates, and deliver consistently outstanding products that win customer trust.


🔍 4-Stage Quality Control for Reliable Jewelry

Every piece of jewelry goes through a rigorous 4-step quality inspection process to ensure it meets international standards for safety, durability, and appearance. Our process includes:

  1. Raw Material Inspection: All metals, stones, and components are checked for compliance with safety regulations (SGS, REACH, RJC certifications).
  2. In-Process Quality Control: During production, we conduct random inspections to catch flaws early and avoid waste or rework.
  3. Final Product Check: After assembly, each item is fully inspected for plating thickness, stone setting security, finish, and labeling accuracy.
  4. Pre-Shipment Review: Before packaging and shipment, our QC team performs a final sampling to ensure consistency and delivery readiness.

This structured approach helps prevent quality issues before they happen, ensuring high satisfaction and fewer returns from your customers.


🧑‍🔬 Professional QC Team & SOP Execution

Our QC inspectors are trained with ISO standards and follow clear Standard Operating Procedures (SOPs). Every step — from wax injection to stone setting — has dedicated checkpoints with photographic and measurement documentation.

Critical products receive additional 100% inspection protocols to ensure precision and customer satisfaction.


📦 Your Brand Deserves Consistency

Sobling’s QC system is built to protect your brand reputation by ensuring every item is safe, consistent, and beautiful — ready for global markets.

We don’t just deliver products; we deliver reliability, customer satisfaction, and peace of mind.

📌 Need more information? Contact us for detailed QC process documentation or a sample inspection report.

Quality Control System
Jewelry Molds Quality Control - 3 make rubber molds sobling jewelry
Sobling jewelry molds quality control
Quality Contorl: Step 1 of 4

Molds' Quality Control

Your jewelry 3D model is created by Sobling designers with 8 years of experience using professional software JewelCAD and Gemvision Matrix with an accuracy of 0.01 mm, also including jewelry brass master molds, jewelry rubber molds making

Quality Contorl: Step 2 of 4

Raw Materials Inspection

The raw materials of your jewelry are tested with professional equipment to ensure compliance with EU standards, including wax materials, metal content, and gemstone grade. etc.

rax material wax mold quality inspection before shipping sobling jewelry
Sobling jewelry wax materials quality check
Quality Contorl: Step 3 of 4

QC During Production Process

During the production process, each piece of your jewelry is inspected 100% in accordance with Sobling's high standards and every quality defect is eliminated with the utmost care.

Sobling Quality control during production process
Sobling jewelry production quality flaws check
Finished products Quality check before shipping sobling jewelry
Sobling jewelry finished products quality inspection
Quality Contorl: Step 4 of 4

100% inspection of finished products

Each piece of your jewelry is 100% inspected to ensure that it meets high quality fine jewelry standards and that defective products are removed
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CERTIFICATIONS

Sobling Respects Quality Standards​

Sobling comply with Quality certificates as TUV CNAS CTC