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Sourcing & compliance · Updated August 5, 2026

How do you tell a real jewelry factory from a trading company?

Most jewelry supplier websites are indistinguishable from one another, and a large share of the companies behind them do not own a production floor. The checks below cost nothing, take an afternoon, and are difficult for a broker to pass.

01

Why the distinction matters

A trading company is not automatically a bad partner — some coordinate production well and add real value in communication and quality management. But three things change when there is no floor behind the sales contact.

Traceability disappears: when a plating batch fails, a broker cannot trace it back to the operation that caused it because the records belong to someone else. Lead times become estimates rather than commitments. And the margin sits on top of the factory's, which is fine if you know it is there and expensive if you do not.

The problem is not brokers. It is not knowing which one you are talking to.

02

Nine checks

Manufacturer verification checklist
CheckWhat a factory doesWhat a broker does
Name a department and ask to see it liveShows the room within a day or twoOffers photos, a scheduled visit "next month", or a different room
Ask who cuts the toolingNames the process and whether it is in-houseVague, or "our partner factory"
Ask for tooling as a separate lineQuotes it separately and confirms ownershipFolds it into the unit price
Ask for plating in micronsQuotes a figure and prices alternativesAnswers with a colour name
Ask the AQL and inspection levelAQL 2.5, ISO 2859-1, level II, with defect classes"Strict quality control"
Ask about a compliance limitNames the standard and the number"We meet international standards"
Ask what will not manufacture as drawnFlags wall thickness, undercuts, substrate conflictsAccepts everything without comment
Check the address against profilesSame address everywhere, word for wordDifferent addresses, or an office address only
Ask for a mill certificateProvides it for the batchProvides a generic assurance

The first check is the strongest and takes the least effort. A supplier who cannot show a named room on request is not producing in it.

03

What should stop a conversation

Some answers are not warning signs but disqualifications.

  • "Please contact us for pricing" on every cost question, including structural ones like how a unit price is built. Structure is not confidential.
  • Refusing to separate tooling from the unit price after being asked directly.
  • Accepting any design without comment. Every design has something worth flagging; a supplier who sees nothing has not looked.
  • Bank details that do not match the entity on the invoice. This is the mechanism of payment-diversion fraud, and it is the one item on this page that can cost you the whole order value at once.
  • "PVD zinc alloy." Physically impossible — the chamber runs hotter than the substrate melts. It reveals that nobody technical read the listing.
04

Six questions worth asking in the first email

These are quick to answer honestly and hard to answer convincingly otherwise.

  1. Which departments are on your own floor, and which stages are subcontracted?
  2. What is your MOQ, and is it per style or per plating colour?
  3. Is tooling quoted separately, and who owns it after it is paid for?
  4. What plating thickness in microns does your quotation assume?
  5. What AQL and inspection level do you inspect to, and what counts as a major defect?
  6. For my market, which compliance standards apply and how is testing arranged?

A supplier who answers all six with numbers is worth talking to further. One who answers with adjectives has told you what you needed to know.

05

Questions on this

Each answer stands alone and can be read without the rest of the article.

How can I verify a Chinese jewelry factory is real?

Ask for floor photographs with the department signage and the machine plates in frame, then ask what each named room does — the press line, the polishing room, the plating line. A supplier brokering production out cannot describe a named room in operational detail, and cannot produce a machine plate you can look up. Then check that the address, company name and phone number are identical across the website, LinkedIn and any B2B platform profile; brokers frequently show an office address in one place and a factory address in another.

Is it worse to buy from a trading company than a factory?

Not automatically — some coordinate production well and add genuine value in communication and quality management. What changes is traceability when something fails, control over lead times, and the margin sitting on top of the factory's. The real risk is not knowing which you are dealing with, because that means you are pricing and planning against assumptions that are not true.

What should a good jewelry quotation contain?

An itemised unit price with metal, labour, plating, finishing and packing shown separately; tooling as its own one-off line with ownership stated; plating thickness in microns; sampling and production lead times; the AQL and inspection level; and the compliance route for your destination market. A single number with no breakdown is not a quotation, it is a price.

Should I visit the factory before placing a first order?

It is the strongest form of verification, and worth it above a meaningful order value. Below that, a third-party inspection of the actual production run usually buys more certainty per dollar than a visit does, because it tests the goods rather than the premises. Whichever you choose, ask about specific named rooms rather than accepting a general tour — a scripted walkthrough proves very little.

What is the single most useful question to ask a supplier?

"What in my design will not manufacture as drawn?" A factory that has read the file will name something specific — a wall below the process minimum, an undercut a die cannot release, plating specified on a substrate that cannot take it. A supplier who says everything is fine has either not looked or cannot tell, and both are expensive later.

Not answered here? All buyer questions →

Sources

Where the standards and legal limits quoted above are published, so a reader can check them at the issuer rather than taking this article's word.

Standards cited on this page
DesignationPublished byWhat it specifies
ISO 2859-1ISOSampling plans indexed by acceptance quality limit (AQL) for lot-by-lot inspection

Every figure on this page traceable to one of these can be checked against the published standard rather than taken on our word.

Put this into a quotation

Send the design, the material and the quantity. You get an itemised price with the tooling separated out, the plating specified in microns, and the compliance route for your market.

  1. 01Reply within one working day, Guangdong business hours.
  2. 02Itemised cost sheet — mold quoted separately, not folded into the unit price.
  3. 03NDA on request before any file is shared.

.stl .3dm .step .ai .pdf .jpg .png — up to 5 MB

Or email support@oemjewelrylab.com directly. We reply to every inquiry with a number, not a brochure.

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