OEM & ODM
How a Factory QC Photo Process Actually Works
QC photos are not marketing shots. They are the inspection. Here is what a good QC photo pack contains and what to look for in each shot.
The factory sends you a few photos before shipment and asks you to pay the balance. Many buyers treat those photos as a formality. They are not. They are the inspection, and reading them correctly is the difference between a lot that matches the sample and a lot that arrives with defects you cannot see on a phone screen. A good QC photo pack has four layers. Here is what each layer contains and what to look for.
Layer 1: First-article photos
After the first casting run, the factory sends photos of the first 2-3 pieces. This is the earliest and cheapest checkpoint. Look for: weight (put the piece on a scale in the photo), stone size (next to a ruler), and overall proportions against the approved sample. If the first article is already off-spec, the factory can adjust the wax model before they cast 500. If you wait for the end of production, the error is in 500 pieces.
First-article photos should show the piece next to a ruler and a scale reading. If the factory sends only a styled product shot, ask for the technical shots.
Layer 2: Mid-production photos
Halfway through production, the factory sends photos of pieces in progress - castings being set, pieces on the polishing bench. These photos confirm that the run is happening and that the pieces look consistent. You are looking for: same finish across pieces, same stone sizes, no obvious casting defects. You are not judging the final polish yet; that comes later.
Layer 3: Finished-lot photos
This is the main QC checkpoint before you pay the balance. The finished-lot photo pack should include:
- A shot of the full lot laid out, so you can see the quantity.
- Close-ups of 5-10 random pieces, showing the front, back, and any engraving.
- A piece weighed on a scale, showing the reading.
- A shot of the stamps (S925, 14k, maker's mark) under magnification.
- A shot of the stones, showing prongs and setting.
Read these slowly. Compare the pieces to the approved sample you have. Check that the plating tone matches. Check that the engraving depth is consistent. If anything looks off, ask for more photos before paying the balance. Once the balance is paid, your leverage is gone.
Layer 4: Packing photos
Before the cartons are sealed, the factory sends photos of the packed boxes, the packing list, and the carton labels. This confirms that the right quantity went into the right cartons and that the shipment is addressed correctly. It is a small step but it catches the 'wrong carton' error that happens more often than you would think.
| QC layer | When it happens | What you check |
|---|---|---|
| First article | After first casting | Weight, proportions, stone size |
| Mid-production | Halfway through | Consistency, casting quality |
| Finished lot | Before balance payment | Finish, stones, stamps, plating |
| Packing | Before carton seal | Quantity, labels, packing list |
What a photo cannot tell you
QC photos catch most visible defects. They do not catch everything. A stone that looks tight in a photo may be loose in the hand. A plating that looks even in a photo may wear off in a month. For orders above $5,000, pair the photo pack with a third-party inspection (SGS, QIMA, Bureau Veritas) that tests stones, weighs pieces, and checks plating thickness on-site. The photos are your first line; the inspection is your second.
Reading a photo that is staged to look good
Factories stage QC photos. They pick the best piece, light it carefully, and angle it to hide flaws. A good QC photo pack shows the piece from multiple angles, including the back and the inside of the band, where casting defects hide. If the factory only sends hero shots of the front, ask for the back shots and the scale shots. A factory that resists sending technical photos is a factory with something to hide. The photos are your inspection; make them comprehensive.
The QC photo process is not optional. It is the cheapest inspection you have, and it happens before you pay the balance. Once the wire leaves your account, the leverage flips to the factory. Use the photo pack to ask questions, compare pieces to the sample, and confirm the lot before the money moves. The buyers who do this get the lots they ordered. The buyers who skip it get the lots they were shipped.
We send the four-layer QC photo pack automatically on every bulk order, and the finished-lot photos go out before the balance is due. More on our QC process is on the OEM process page. Treat the photos as the inspection they are, not as a courtesy. Read them, ask questions, and pay the balance only when the photos answer them.
Authoritative References
For buyers who need to verify the technical and regulatory basis of this guide, the following independent institutions publish authoritative reference data:
- ISO 9001 Quality Management - the international standard for consistent production quality.
- Wikipedia: Jewellery - manufacturing processes, materials and global trade background.
