Sourcing a jewelry supplier online is a minefield. Catalogs look identical, MOQs look identical, and prices overlap. The difference between a real factory and a middleman shows up in lead-time slips, communication quality, and defect handling months into the relationship. A short set of vetting questions at the start separates the two, and saves you from a first order that looks fine but lands late and off-spec.
Ask which stations are in-house
A real factory will tell you, station by station, what it does in-house and what it outsources. Expect in-house CAD, casting, finishing, and setting as the baseline. Shops that outsource casting or setting are reselling another shop's capacity, which means longer lead times and less control over defects. If the answer is vague or you cannot get a station list, treat the supplier as a trading company and price accordingly. A trading company can be a fine partner for small, repeat orders; it is the wrong partner when you need design changes, fast rework, or defect accountability.
Ask for a sample before bulk
A factory confident in its work will produce a sample piece, often for a sample fee that is credited back on the bulk order. The sample tells you more than any catalog: check wall thickness, prong tightness, finish consistency, and engraving legibility. A supplier that refuses samples, or quotes a sample price so high it discourages you, is protecting a production line that cannot hit the spec. Always sample before a first bulk order, and compare the sample against the final bulk delivery; a gap between sample and bulk is the second most common sourcing complaint.
Push on the MOQ logic
MOQs should reflect real constraints: how many waxes fit a flask, how many pieces share a plating bath, how many stones fit a setter's batch. A factory that demands a 500-piece MOQ on a 925 silver pendant without explaining the batching logic is either negotiating or unfamiliar with its own line. Conversely, a factory that offers 5-piece MOQs on complex pavé bridal is likely outsourcing the setting and buying back time. Ask why the MOQ is what it is; the answer is revealing. A real factory explains the batching math; a middleman repeats a number.
Test communication engineering depth
Send a technical question: ask about wall thickness on a specific ring profile, or how they handle a specific stone size in a bezel, or what solder grade they use on 14k white. A factory engineer will answer with specifics and push back if the design is risky. A sales middleman will promise anything and discover the problems at casting time. Run this test before you place a deposit. The quality of the technical answer is a stronger signal than the price quote, because price can be cut but engineering judgment cannot be faked.
Visit or request a live walkthrough
Even a short video walkthrough of the floor during business days tells you whether the shop is real. Ask to see the casting room running, the finishing benches occupied, and the QC station logging. A trading company will redirect you to marketing photos; a factory will put a camera on the line. If travel is possible, a half-day visit saves months of friction. Watch for empty benches during working hours, which suggest a shop that subcontracts everything and only assembles what comes back.
Payment terms and how they reveal risk
Standard wholesale jewelry terms are a deposit on order placement and the balance on shipping, often by bank transfer. A factory that demands 100 percent upfront before producing anything is asking you to carry all the risk; a factory that offers net-30 terms on the first order without any history is unusually generous, and you should confirm it is real. Payment terms are also where middlemen hide: they collect from you, then pay the actual factory on slower terms, and any cash-flow problem at the middleman delays your order. Transparent factories are willing to discuss milestones and deposits openly.
Intellectual property and design protection
If you are sending original CAD or original designs, confirm in writing that the factory will not reproduce your pieces for other buyers. Real factories will sign a simple design non-disclosure agreement and keep your master files and rubber molds tagged to your account. A factory that treats every customer's CAD as generic inventory is a partner you will eventually regret. Also ask who owns the rubber mold after production: in most wholesale arrangements, the mold belongs to the buyer who paid for it, and the factory should hand it over or hold it on request. Getting this in writing at the start prevents a messy conversation when you want to move the line elsewhere.
Confirm defect and replacement policy in writing
Real factories accept a defined defect rate and handle replacements on the next PO. Get the policy in writing: what counts as a defect, what the replacement window is, and who pays shipping. A supplier that hedges on defect terms is telling you what to expect after your first bulk delivery. You can review our own production and sample process on our collection range.
Sterling silver terminology used in this guide follows the Wikipedia entry on sterling silver.
Frequently Asked Questions
How do I verify a factory before placing a bulk order?
Request a production video, business license, export records and a paid sample run. A factory that accepts a 50-piece test order is usually a real manufacturer.
What payment terms do you offer?
30% T/T deposit with the balance against the bill of lading. This protects both sides on first orders and can move to net terms after a track record.
What is your normal reject rate?
3–5% under 10x loupe inspection for cast and set pieces. Defective units are replaced free in the next shipment.
Where is the factory located?
Wuzhou, Guangxi, China—the core lab-grown and moissanite manufacturing cluster. Shipments go via Guangzhou or Shenzhen ports.
