JEWELRY MANUFACTURING BOM PRECIOUS METAL & STONE CHECKLIST 2026

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--- PRECIOUS METAL SPECIFICATION & PURITY VERIFICATION ---
[ ] Metal Type
[ ] Metal Purity/Karatage (24K, 22K, 18K, 14K, 10K, 925 Sterling Silver, Platinum)
[ ] Target Weight (Grams)
[ ] Actual Measured Weight (Grams)
[ ] Assay Certificate/Lab Report
[ ] Quality Assurance Inspector Approval

--- GEMSTONE & LOOSE STONE INVENTORY AUDIT ---
[ ] Gemstone Type/Species
[ ] Total Carat Weight (ct)
[ ] Stone Grade/Clarity Grade (Flawless, VS1/VS2, SI1/SI2, I1/I2)
[ ] Inspection Date
[ ] Gemstone Certificate/Lab Report
[ ] Quality Controller Approval

--- METAL SOURCING & ETHICAL TRACEABILITY ---
[ ] Sourcing Date
[ ] Metal Origin Certificate Type (Responsible Jewellery Council (RJC) Certified, Fairmined Gold Certified, Recycled/Reclaimed Content, Standard Commercial Invoice)
[ ] Supplier Traceability ID
[ ] Proof of Origin Documentation
[ ] Ethical Compliance Verifications (Conflict-Free Verified, OECD Due Diligence Compliant, Environmental Impact Assessed, Anti-Money Laundering (AML) Checked)
[ ] Compliance Officer Approval

--- COMPONENT DIMENSION & TOLERANCE CHECK ---
[ ] Design Specification Reference ID
[ ] Measured Component Width (mm)
[ ] Measured Component Length (mm)
[ ] Maximum Allowable Deviation (Tolerance mm)
[ ] Dimension Status (Within Tolerance, Out of Tolerance, Requires Engineering Review)
[ ] Technical Blueprint or CAD Drawing Attachment
[ ] Quality Control Inspector Approval

--- CONSUMABLES & SOLDER ALLOY COMPATIBILITY ---
[ ] Primary Solder Type (Hard Solder, Medium Solder, Easy Solder)
[ ] Alloy Composition Details
[ ] Solder Weight (grams)
[ ] Required Flux Agents (Borax-based Flux, Acid Pickle, Organic Flux, Hydrochloric Acid)
[ ] Material Safety Data Sheet (MSDS)
[ ] Quality Assurance Approval

--- WEIGHT & MASS BALANCE RECONCILIATION ---
[ ] Theoretical BOM Metal Weight (grams)
[ ] Actual Measured Metal Weight (grams)
[ ] Weight Variance Percentage
[ ] Variance Status (Within Tolerance, Exceeds Tolerance - Requires Investigation, Critical Loss - Production Halt)
[ ] Digital Scale Calibration Log
[ ] Production Supervisor Approval

--- FINISHING & PLATING REQUIREMENTS ---
[ ] Plating Type (Rhodium, 18K Gold, 14K Gold, Rose Gold, E-Coating)
[ ] Plating Thickness (Microns)
[ ] Required Finishing Processes (Polishing, Buffing, Sandblasting/Matte, Acid Pickling, Ultrasonic Cleaning)
[ ] Special Finishing Instructions
[ ] Quality Inspection Certificate
[ ] Supervisor Approval

--- PACKAGING & HALLMARK COMPLIANCE ---
[ ] Hallmark Stamp Authentication Code
[ ] Packaging Material Type (Luxury Velvet Box, Standard Cardboard Box, Eco-friendly Recycled Pouch, Travel Carrying Case)
[ ] Compliance Inspection Date
[ ] Certificate of Authenticity Image
[ ] Quality Assurance Approval

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