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Jewelry Wholesale Supplier Verification FAQ: Factory vs Trading Company
Sep 29, 2026
Jewelry Wholesale Supplier Verification FAQ
Factory vs Trading Company, Audits, Test Reports, and What to Ask
The Difference Shows Up in the Second Order
Anyone can sell you a ring once. The question is whether the second order matches the first. That is where the difference between a real jewelry factory and a trading company shows up. Trading companies can quote low prices and ship decent samples. When you reorder at volume, the quality drifts, the lead time stretches, and the paperwork you need for customs never arrives.
Buyers in the jewelry trade ask the same questions again and again. Is this supplier actually a factory? Can they prove the material? What happens if plating fails after six months? This guide walks through how to verify a stainless steel jewelry supplier before you commit real money.
Verification is not about being suspicious. It is about protecting your brand and your margins.
Real factory signals: A genuine jewelry factory shows production equipment, not just an office. Look for CNC or casting machines, laser welding and engraving, polishing lines, and an independent PVD vacuum plating workshop. Trading companies usually show a showroom and little else. Real factories provide third-party test reports: nickel release reports to meet EU REACH rules, salt spray test sheets for rust resistance, and exact plating thickness documents. They hold certifications like BSCI, SEDEX, ISO 9001, and SGS material tests, and the certificate names match their business license. A factory can explain the full production craft step by step. Most can do a live video tour on short notice.
Factory or Trading Company
How do I tell a real factory from a trading company?
Key differences: (1) Ask for the business license and read the scope. A factory lists production and processing as core activities. A trading company lists sales. (2) Compare the registered address with the production site. A factory address matches the workshop. (3) Ask for a live video tour on short notice, without scheduling time. A real factory can show the floor anytime. (4) A trading company may only show an office. (5) Check who issues the VAT invoice and who is exporter of record. (6) Look for equipment: laser cutters, CNC machines, polishing lines, PVD plating. (7) Ask three technical questions about production. Only a producer answers quickly. (8) Request factory audit reports like BSCI or SEDEX. (9) Order a sample and check the packaging and labels. (10) Cross-check the name on license, quotation, certificates, and bank details. They should all align.
What if a trading company is cheaper?
Cheaper is not always better: (1) Trading companies add a markup, so lower quotes usually mean thinner quality somewhere. (2) They subcontract, so they cannot control plating or QC. (3) If something fails, they pass blame to the workshop. (4) A factory controls the whole chain and fixes problems. (5) The price gap is often small on stainless steel jewelry. (6) Test both with samples before deciding. (7) Compare reorder quotes, not just the first order. (8) Ask for the plating thickness in microns. (9) Ask for salt spray test results. (10) Pay a little more for control. Your brand depends on it.
What test reports should a supplier provide?
Required paperwork: (1) Nickel release report. EU REACH limits skin-contact items to under 0.5 micrograms per square centimeter per week. (2) Salt spray test sheet proving rust resistance. (3) Plating thickness documents showing microns. (4) Material composition report for 316L grade. (5) Test reports from international labs, not self-made sheets. (6) REACH and RoHS compliance for EU markets. (7) Prop 65 compliance if selling into California. (8) Certificates with the factory name on them. (9) Ask for updated reports each year. (10) Keep them for customs and customer questions.
| Checkpoint | What to Verify | Why It Matters |
|---|---|---|
| Business license | Scope lists production, not just sales | Confirms manufacturing capability |
| Live video tour | Machinery, workers, materials on floor | Trading companies cannot show it |
| Test reports | Nickel release, salt spray, plating thickness | Legal compliance and durability |
| Certifications | BSCI, SEDEX, ISO 9001, SGS | Third-party audit proof |
| VAT invoice | Who issues it, exporter of record | Customs and tax traceability |
| Sample order | Finish, weight, clasp, packaging | Matches production standards |
Quality Checks on Samples
What should I check on a physical sample?
Sample checklist: (1) Weight. Does it match the quoted range? (2) Clasp strength. Open and close it twenty times. (3) Prong security on set stones. (4) Solder points and hinge movement. (5) Chain link consistency. (6) Polish level and scratch control. (7) Plating tone matches across pieces. (8) Logo sharpness if engraved. (9) Nickel-safe feel on skin. (10) Packaging and labels. The sample is a contract. If it is sloppy, mass production will be worse.
Why does stainless steel need less QC than plated pieces?
Stainless steel advantage: (1) 316L does not tarnish or rust under normal wear. (2) The chromium oxide layer self-heals. (3) No plating to wear off, unless it is PVD finished. (4) Even PVD finishes on stainless hold far longer than on brass. (5) Fewer returns from green skin or peeling. (6) Nickel is locked in the alloy, so leaching stays low. (7) That means your QC focuses on finish and structure. (8) Salt spray and nickel reports still matter. (9) Stainless is forgiving, but not free of checks. (10) Verify the grade is really 316L, not 201 or 304.
How do I verify it is really 316L?
Grade verification: (1) Ask for the material composition report. (2) 316L contains 16 to 18 percent chromium and 2 to 3 percent molybdenum. (3) The L means low carbon. (4) A simple magnet test is not enough. (5) Ask suppliers how they source raw material. (6) Real factories buy from certified mills. (7) Check for the test report from an international lab. (8) Compare multiple quotes and see who provides documents. (9) If nobody provides reports, walk away. (10) Grade matters for both durability and your claims to customers.
Avoiding Sourcing Mistakes
What questions should I ask before ordering?
Questions to ask: (1) Are you the manufacturer or a trading company? (2) Can you show the production floor on a live call now? (3) What is the exact plating thickness? (4) Do you provide nickel release and salt spray reports? (5) What is your reorder lead time? (6) What happens if plating fails after three months? (7) Can I mix styles within one order? (8) What is your MOQ for custom pieces? (9) Do you support private label packaging? (10) Who issues the VAT invoice? Their answers tell you more than their catalog.
How much should the first order be?
First order sizing: (1) Start small, around $150 to $500. (2) Order 5 to 10 styles you plan to sell. (3) Test finish, weight, and consistency. (4) Check how fast reorders arrive. (5) Verify the paperwork arrives with the goods. (6) Do not order thousands of pieces from an unverified supplier. (7) A small first order is cheap insurance. (8) If the supplier resists samples, that is a red flag. (9) Scale up once quality and lead time prove out. (10) The second order is where the real relationship starts.
- License: Scope must list production, not just sales.
- Video tour: A real factory shows the floor on short notice.
- Reports: Nickel release, salt spray, plating thickness, material grade.
- Certifications: BSCI, SEDEX, ISO 9001, SGS. Names must match the license.
- Samples: Check weight, clasp, prongs, solder, plating tone, logo.
- Grade: Confirm 316L with 16-18% chromium, 2-3% molybdenum.
- First order: Keep it small. $150 to $500 tests everything.
- Paperwork: VAT invoice and exporter of record must be clear.
Final Sourcing Advice
Verification takes an afternoon and saves you from a season of returns. A supplier who answers technical questions, shares test reports, and lets you watch the floor is a supplier you can build with. One who dodges those requests is not worth the lower price.
Showfay has been manufacturing stainless steel jewelry since 1998. The factory, the plating lines, and the test reports are all part of the story. That is why wholesale buyers keep coming back for reorders.
Ask for the video tour first. It tells you more than any catalog.
Verify Our Factory316L Stainless Steel · Factory Since 1998 · MOQ $150
Request Test ReportsNickel Release and Salt Spray Docs on Request
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