Table of Contents
- Introduction
- What Is Jewelry Quality Control?
- Why Jewelry QC Is Different
- QC Across the Production Lifecycle
- Jewelry QC Inspection Points
- Final Quality Inspection
- Jewelry Defect Classification
- Common Jewelry Manufacturing Defects
- QC Status & Decision Workflow
- Jewelry Rework Management
- QC and Outsourced Jewelry Production
- QC for WIP Inventory
- QC and Jewelry Inventory
- QC and Jewelry Inventory Status
- QC and Jewelry Costing
- Jewelry Scrap, Loss & Recovery
- Jewelry QC Checklist
- QC Sampling vs 100% Inspection
- Configurable QC Rules
- QC Template & Routing
- Jewelry QC Software Features
- QC Software vs Paper / Excel
- Jewelry QC Metrics & KPIs
- Jewelry QC Dashboard
- How JasperOps Manages QC
- Example: Complete Jewelry QC Workflow
- Frequently Asked Questions
Introduction: Why Quality Control Matters in Jewelry
A single jewelry item can fail at multiple points:
- Casting defects
- Incorrect dimensions
- Scratches
- Polishing problems
- Loose stones
- Incorrect stone placement
- Soldering defects
- Weight discrepancy
- Finishing defects
- Certificate / tag mismatch
Key Insight: Unlike general manufacturing, a small physical defect in jewelry can result in significant financial loss, customer complaint, return, or reputational damage.
📖 Jewelry Manufacturing Software Guide →
What Is Jewelry Quality Control?
Jewelry quality control is the systematic process of inspecting jewelry materials, work-in-progress, and finished products to ensure they meet defined quality, specification, and customer requirements.
Quality Control vs Quality Assurance
Focuses on inspection and detection of defects
Focuses on process and system to prevent defects
Why Jewelry Quality Control Is Different
A single defect can cost thousands or millions
Metal + purity + weight + dimensions + stones + certificate
Two items with the same SKU can have different physical characteristics
Defects can occur at design, wax, casting, polishing, setting, finishing
Jewelry Quality Control Across the Production Lifecycle
Key Principle: The exact routing does not have to be identical for every jewelry product. QC checkpoints can be configured based on the product and production process.
Jewelry QC Inspection Points
1. Raw Material Inspection
- Material type
- Purity
- Weight
- Condition
- Supplier information
- Batch / lot
- Certificate if applicable
2. Design Inspection
- Dimensions
- Proportions
- Stone placement
- Technical specifications
- CAD / model accuracy
3. Wax / Resin Model Inspection
- Dimensions
- Symmetry
- Surface quality
- Structural integrity
- Stone seat
- Casting preparation
4. Casting Inspection
- Porosity
- Cracks
- Incomplete casting
- Surface defects
- Distortion
- Dimensions
- Sprue removal
- Weight
5. Cleaning / Filing Inspection
- Remaining casting marks
- Surface condition
- Sharp edges
- Structural damage
6. Polishing Inspection
- Surface finish
- Scratches
- Polishing consistency
- Symmetry
- Corners and edges
7. Stone Setting Inspection
- Stone count
- Stone position
- Stone security
- Prongs
- Alignment
- Symmetry
- Gaps
8. Final Finishing Inspection
- Surface
- Polish
- Engraving
- Dimensions
- Appearance
- Overall consistency
Jewelry Final Quality Inspection
Final QC is the gate before finished goods. It's not just a checklist — it's a decision point.
Final QC Checklist
Jewelry Defect Classification
Doesn't affect primary function
e.g., minor surface mark, minor polish inconsistency
Affects quality or customer acceptance
e.g., visible casting defect, incorrect dimensions, poor stone alignment
Affects safety, integrity, or sellability
e.g., loose stone, structural crack, incorrect material/purity
Common Jewelry Manufacturing Defects
| Defect | Possible Stage | Possible Action |
|---|---|---|
| Porosity | Casting | Rework / Scrap |
| Crack | Casting | Rework / Scrap |
| Scratch | Polishing | Re-polish |
| Uneven finish | Polishing | Rework |
| Loose stone | Setting | Re-setting |
| Misaligned stone | Setting | Rework |
| Wrong dimension | Manufacturing | Rework |
| Wrong weight | Material / Production | Investigate |
| Surface damage | Finishing | Rework |
QC Status & Decision Workflow
Status yang dapat digunakan:
- ⏳ Pending
- 🔍 In Inspection
- ✅ Passed
- ❌ Failed
- 🔄 Rework Required
- 🔍 Re-inspection
- ❌ Scrapped
- 📦 Released
Jewelry Rework Management
When QC fails, the item shouldn't just be marked "failed." There must be a rework workflow.
Rework Data
- Defect type
- Defect description
- Responsible stage
- Assigned employee
- Rework start
- Rework completion
- Additional material
- Additional labor
- Additional cost
- QC result
QC and Outsourced Jewelry Production
Key Insight: Outsourcing should not be a black box. JasperOps can track vendor, quantity sent, weight sent, quantity returned, weight returned, loss, service cost, QC result, and vendor rework.
QC for WIP Inventory
Question: How much WIP is currently waiting for QC?
QC and Jewelry Inventory
Key Insight: Produced quantity ≠ Sellable quantity. QC determines what actually becomes available inventory.
QC and Jewelry Inventory Status
Example: 100 Produced
- ✅ 92 Passed → Available
- 🔄 5 Rework
- ⏳ 2 QC Pending
- ♻️ 1 Scrap
QC and Jewelry Costing
QC failure has a direct cost impact:
- Additional labor
- Additional material
- Additional stone
- Additional polishing
- Vendor rework cost
- Scrap
- Metal recovery
↓
Production
↓
QC
↓
Rework
↓
Additional Cost
↓
Actual Cost
Key Insight: QC is not just about quality — it's also about cost control. Rework and scrap directly affect production costing.
📖 Jewelry Production Costing Software →
Jewelry Scrap, Loss & Recovery
Item can still be repaired
Cannot be used as finished product
Material can be recovered
For jewelry manufacturing, scrap metal has value. Recovery is an important part of the process.
Jewelry QC Checklist
Product Identity
Metal
Stones
Finishing
Documentation
Jewelry QC Sampling vs 100% Inspection
100% Inspection
Every item is inspected. Suitable for:
- High-value jewelry
- Custom jewelry
- Critical products
- Final inspection
Sampling
A portion of items are inspected. Suitable for:
- High-volume production
- Standardized products
- Controlled manufacturing process
Key Principle: QC rules should be configurable based on product value, risk, type, and merchant policy.
Configurable QC Rules
Don't hardcode: "Every product → Same QC checklist."
QC Configuration Flow
↓
QC Template
↓
Inspection Criteria
↓
Pass / Fail Rules
Example: Different QC for Different Products
- Stone count
- Stone security
- Setting
- Polish
- Weight
- Dimensions
- Weight
- Purity
- Dimensions
- Polish
- Surface
- Customer specification
- CAD reference
- Dimensions
- Stones
- Engraving
- Finishing
QC Template & Routing
↓
Routing
↓
Stage
↓
QC Checkpoint
Not every routing needs to have the same checkpoints.
Jewelry QC Software Features
Jewelry Quality Control Software vs Paper / Excel
| Feature | Paper / Excel | QC Software |
|---|---|---|
| Checklist | Manual | Digital |
| History | Difficult | Full audit trail |
| Rework Tracking | Manual | Rework workflow |
| WIP Visibility | Difficult | Real-time status |
| Defect Analysis | Difficult | Defect reporting |
| Integration | Separate | Integrated with production & inventory |
Jewelry QC Metrics & KPIs
FPY
Example
100 Units Produced → 92 Passed First Inspection → FPY = 92%
Jewelry QC Dashboard
QC Dashboard
Defects by Stage
Dashboard Insight: A QC dashboard allows management to see bottlenecks and recurring defects, not just pass/fail results.
How JasperOps Manages Jewelry Quality Control
JasperOps connects:
- QC ↔ Manufacturing — QC is part of the production flow
- QC ↔ WIP — Know which items are waiting for QC
- QC ↔ Inventory — QC determines inventory availability
- QC ↔ Costing — Rework and scrap affect costs
- QC ↔ Outsourcing — Track vendor QC and rework
Key Principle: QC is not an isolated module. It is an integrated decision point in the production lifecycle.
📖 Jewelry Manufacturing Software →
Example: Complete Jewelry QC Workflow
Product: 18K Diamond Ring × 10
Data recorded:
- Production quantity: 10
- Pass quantity: 9
- Rework quantity: 1 (1 scrapped after rework)
- Scrap quantity: 1
- Defect type: Casting porosity
- Additional cost: $XX
- Final quantity: 9
Frequently Asked Questions
Jewelry quality control is the systematic process of inspecting jewelry materials, work-in-progress, and finished products to ensure they meet defined quality, specification, and customer requirements.
Check: SKU, weight, dimensions, metal purity, stone count, stone security, setting, finishing, surface, polish, certificate, and overall appearance. Inspection points vary by production stage.
Common defects: porosity, cracks, scratches, uneven finish, loose stones, misaligned stones, incorrect dimensions, wrong weight, and surface damage.
Jewelry QC must track individual items with unique attributes (weight, purity, stones, certificates). A small defect can have a large financial impact.
It depends. 100% inspection is recommended for high-value, custom, or critical items. Sampling may be suitable for high-volume, standardized production.
Rework is tracked with defect type, description, responsible stage, assigned employee, time, additional material, additional labor, additional cost, and re-inspection result.
Outsourced production should have incoming QC when material returns from the vendor. Track quantity sent, weight sent, quantity returned, weight returned, loss, service cost, QC result, and vendor rework.
Produced quantity ≠ Sellable quantity. QC determines what actually becomes available inventory. QC-pending items are not available for sale.
QC failure generates additional labor, material, stone, polishing, vendor rework, and scrap costs. Rework and scrap directly affect actual production cost.
Software should include: configurable QC checklists, checkpoints, pass/fail status, defect classification, rework workflow, re-inspection, scrap handling, vendor QC, WIP QC, audit trail, and production/inventory integration. Explore JasperOps →
Integrate Quality Control Into Your Jewelry Manufacturing
JasperOps connects QC, manufacturing, WIP, inventory, costing, and outsourcing in one configurable platform. Inspect at every stage, manage rework, track scrap, and keep your production on track.