How do I vet a jewelry factory before placing a first order?
925 sterling silver jewellery, set with lab grown diamonds and made in our own Shenzhen workshop.

Talk · Sourcing & Ordering (B2B)
A new brand wants to place a first order with a jewelry factory it found online and asks how to check that it is a real, capable and reliable supplier.
Judge a factory by evidence, not promises. Ask for samples, a live video tour, business documents and references, and start with a small trial order so that mistakes stay cheap.
What to check
Our advice A reliable factory answers questions clearly, shows its work and is open about limits such as minimum order, lead times and what it cannot make.
- Identity: a registered business name, address and contact that match across documents, website and invoices.
- Samples: ask for finished pieces similar to what you want, and inspect them closely.
- Process: ask how they cast, set, polish and plate, and who does each step.
- Quality control: ask what they inspect, when and how defects are handled.
- Communication: note how quickly and specifically they respond.
Ways to confirm
- A live video call walking through the workshop
- References from other buyers you can contact
- Photographs and videos of current work
- Searching the company name for reviews and disputes
It depends No single check is enough. A beautiful website can hide a trading agent, and a small workshop can be excellent. Combine several checks.
Red flags
- Refusal to show the workshop or speak by video
- Pressure to pay in full immediately
- Prices far below every other quote
- Vague answers on materials and tolerances
Reduce the risk
Our advice Start with a small order, agree specifications in writing and pay in stages through a method with some protection.
Keep records
- Save emails, quotations and photos
- Note sample versions and approvals
A simple scoring approach
Our advice Give each factory a score from one to five for samples, communication, documents, process knowledge and references, and compare totals. It is crude, but it stops one impressive photo from outweighing several weak answers, and it gives you a record of why you chose one supplier over another.
Our advice Keep a written record of what you checked and what the factory said.
Uncertain We cannot confirm that any particular factory is reliable. Do your own checks.
Related reading: What should I know before ordering diamond jewelry from overseas? · Jewelry Plating Specification for Custom Orders
Sources
No external standard governs this question, so this answer is editorial advice from the ZKZ team and is labelled that way.
Fact = stated by the cited source. Our advice = editorial recommendation. Uncertain / it depends = limits of what can be said in general.
Other perspectives from the ZKZ team
Ask for the company's registered details and check they match on every document. A real factory will not mind.
Keep a written record of specifications and approvals. Disputes are resolved on paper, not on promises.
Ask how each step is done and by whom. A factory that can describe its process is far more likely to control it.
Have a different question? Ask our team, or browse more answers in Talk.
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