A retailer in Miami sold a 1.0 ct stone as certified and the report number on the card did not match the laser inscription, and the return cost more than the margin. The order was not lost on price. It was lost on a specification nobody wrote down. This piece looks at custom orders from the buyer's side of the table: what the promise means at the bench, what it costs to get it wrong, and how to write a brief a factory can be held to.
What a Certificate Proves, and What It Does Not
A certificate is a statement about one stone at one moment. It is not a statement about a parcel, and it is not proof that the stone in the box is the stone on the paper.
The check that matters is the inscription. If the report number is not on the stone, the paper is a claim rather than a record.
What the Industry Standard Delivers, and Where It Breaks
The default offer in this category is a stock photo, a unit price and a thirty-day promise. That works for one order and stops working on the second, because a stock photo cannot specify 92.5% silver with a copper alloy.
| Comparison | Common practice | What we hold | Why it matters |
|---|---|---|---|
| Grade | Report | Applies to | |
| Single stone above 0.50 ct | IGI or GIA individual | one stone, one number | |
| Parcel below 0.50 ct | parcel grade | range, not a single stone | |
| Colour stone | origin and treatment note | stone plus treatment | |
| Mounting | metal assay and hallmark | setting, not the stone |
How We Keep Stone and Report Matched
Plating thickness on a cross-section is the number we publish per lot. It is the one a buyer can check with a caliper and a loupe in ten minutes, and the one that decides whether a reorder is a formality or a negotiation.
- Lot and rack reference on every carton
- 92.5% silver with a copper alloy declared on the invoice, not assumed
- One plated sample approved per rack before the run
- Stone parcel photographed and hue band stated in writing
Sampling Plan and the AQL We Work To
We inspect at AQL 2.5 on the final line and 3 to 5 per cent on setting, sampled per carton rather than per lot. Per-carton sampling is stricter because a defect that clusters in one carton is a process problem, not a random one.
Anything above the AQL is held and reworked before packing. We do not sort after arrival, because sorting after arrival is a cost the buyer pays and a defect the buyer discovers in front of a customer.
What the Buyer Can Verify in Ten Minutes
At the receiving table: count per SKU against the packing list, weigh three pieces, measure the sterling silver piece, check one stone at 10x for seat and tilt, and confirm the plating colour against an approved sample.
Five checks, ten minutes. They catch the defects that are visible on day one and free the buyer to argue about the ones that are not, with evidence rather than impression.
Specification, Field by Field
Read the specification as a checklist: 92.5% silver with a copper alloy, rhodium plated at 0.05 to 0.10 micron, nickel-free and REACH compliant. Each comma is a decision someone made, and each decision has a cheaper alternative that a factory can substitute without telling you.
The substitution is usually invisible on delivery. It shows up as a hue shift in month three, a prong that will not hold after a resize, or a plating that reads slightly warm under store lighting.
How Plating Is Measured
We measure plating thickness on a cross-section on every lot and record the number against the rack. It is the one figure a buyer can independently verify with a caliper, a loupe and ten minutes at the receiving table.
If the number is inside the band, the lot ships. If it is outside, it goes back to the bench rather than into a carton with a note that says the buyer should expect variation.
What One Returned Sterling silver piece Actually Costs
A returned sterling silver piece costs the unit price twice: once in goods, once in handling, plus the freight both ways and the customer's lost confidence. On a sterling silver piece the handling is usually larger than the margin.
That is the arithmetic behind every decision on this page. A cent saved on plating is not a saving if it produces a return rate two points higher.
Sampling Plan and the AQL We Work To
We inspect at AQL 2.5 on the final line and 3 to 5 per cent on setting, sampled per carton rather than per lot. Per-carton sampling is stricter because a defect that clusters in one carton is a process problem, not a random one.
Anything above the AQL is held and reworked before packing. We do not sort after arrival, because sorting after arrival is a cost the buyer pays and a defect the buyer discovers in front of a customer.
Where the Margin Leaks After the Order Lands
The unit price is the visible cost. The invisible ones are returns, size exchanges, replating, markdowns and the labour of photographing a piece that arrived with the wrong tone.
On a typical wholesale programme those five add between eight and fourteen per cent to the real cost of goods. Fixing plating thickness and stone hue band removes most of it before the first season ends.
The Difference Between Capacity and Availability
Capacity is how much a line can make in a month. Availability is how much of that is free in the week you need it. Factories quote the first and deliver the second.
We quote capacity per line and then reserve a slot against your deposit, so the date you are given is a booked date rather than an average.
How We Test Before the Carton Closes
Testing happens at four points and none of them is the packing table. The casting tree is checked for porosity and short fill, the setting bench for seat and tilt, the plating rack for thickness on a cross-section, and the final line for weight and dimension.
A final inspection alone catches perhaps a third of what goes wrong, because the other two thirds were decided upstream. That is why the record has four columns and not one.
Where the Margin Leaks After the Order Lands
The unit price is the visible cost. The invisible ones are returns, size exchanges, replating, markdowns and the labour of photographing a piece that arrived with the wrong tone.
On a typical wholesale programme those five add between eight and fourteen per cent to the real cost of goods. Fixing plating thickness and stone hue band removes most of it before the first season ends.
What It Costs and How Long It Takes
Fifty pieces per design is the working minimum on custom orders. A sample runs three to five days, bulk fifteen to twenty days under 500 pieces, and a custom mould twenty-five to thirty days from drawing approval. Payment is 30% deposit with the balance against the bill of lading copy.
If the order is below fifty, the setup cost per piece roughly doubles because the casting tree and the plating rack are fixed costs. That is arithmetic, not a policy to negotiate around.
| Item | Value | Note |
|---|---|---|
| MOQ | 50 pcs / design | sizes and colours can be split |
| Sample | 3-5 days | one piece, approved before the run |
| Bulk lead time | 15-20 days | under 500 pieces |
| Custom lead time | 25-30 days | from drawing approval |
| Payment | 30% / 70% | balance against B/L copy |
| Port | Guangzhou / Shenzhen | export from Wuzhou |
Frequently Asked Questions
Is custom orders certified?
Above 0.50 ct per stone we ship with an individual IGI or GIA report and the number laser-inscribed on the girdle. Below that, parcels are graded as a range and the range is on the invoice.
Can you supply GRA instead of IGI?
GRA is a commercial card, not a laboratory report. We will supply it if you ask, but we tell buyers to treat it as a seller document and not as third-party grading.
How do I verify a report?
Enter the number on the laboratory site and compare the measurements and the inscription. If the depth or the table percentage differs from the stone you have, the paper does not belong to that stone.
Do you certify the metal?
Finished pieces are laser-hallmarked with the karat and our mark. An assay can be requested per lot, and we will quote it as a separate line.
Can you produce a second lot identical to the first?
Yes, if we hold the four inputs: alloy batch, stone parcel, plating tank and setting team. The reorder sheet records all four, so the check happens against a document rather than against a memory.
What happens if the lot arrives outside the agreed tolerance?
Photograph the piece with a scale and reference the lot line. Above the agreed AQL we replace and cover freight; inside it we replace the affected units inside ten days.
About the Manufacturer
HOLYCOME by Wuzhou HengliLai Jewelry Co., Ltd. runs casting, setting, polishing and plating on one site in Wuzhou, Guangxi, the artificial gemstone cluster that supplies most of the trade. Monthly capacity is roughly 60,000 pieces across silver and gold lines. Buyers can reach the trade desk at service@holycome.com or on WhatsApp at +86 18078079070, and a factory visit can be arranged with two weeks' notice.
Next Step
If you are pricing custom orders for a season, send the quantity per design, the stone grade you need and the date you need it on the shelf. We will return a drawing, a landed cost and a production date within three days, and a physical sample before you commit to a run. Samples are charged at cost and credited against the first order.
Related reading: Bulk Jewelry Oem Bracelets Supplier - HOLYCOME, Custom Bracelet Manufacturer Wholesale Guide - HOLYCOME, Necklace Wholesale B2B Sourcing Guide - HOLYCOME
