AQL, Tray Checks and What a QC Report Should Say in the Amazon FBA Ready Program
A US buyer of metal Guide came to us after 200 metal Guide from a trading company produced 11 rejects in the first inspection. The defect was not cosmetic: stamp accuracy had drifted far enough that the buyer's own bench could not correct it without recutting, and 200 pieces leaves Wuzhou in retail-ready box with FNSKU label at USD 45-320.
At 200 pieces the buyer was not buying a defect, they were buying a document. The Amazon FBA Ready order carried a photo and a price, and stamp accuracy had nowhere to live, which is how the Amazon FBA Ready account reads it at USD 45-320.
Our rebuild kept the buyer's retail price and changed four numbers on the bench. The next run cleared inspection because the specification traveled with the tray, not with a phone call, on a 200-piece Amazon FBA Ready order at USD 45-320.
Four Spec Lines a Amazon FBA Ready Buyer Checks
Most quotes describe the metal Guide and skip the part that determines the buyer's margin. Those four lines are listed below with the trade default beside our standard, with GRA report and retail-ready box with FNSKU label stated on the same sheet, and at USD 45-320 for 200 pieces that is the number the buyer signs.
| Spec point | Common trade output | HOLYCOME standard | Cost if missed |
|---|---|---|---|
| Stone colour consistency | Graded by eye under D65 | Colour matched to a retained master stone, per tray | Repeat colour complaint in the same SKU |
| Sizing drift across the run | Not measured | Go/no-go gauge on every size, drift held under 0.15 mm | Resize queue and reship cost |
| Clasp spring life | Sampled by hand | Cycled 500 times on a jig per lot | Detach claim and brand damage |
| Prong tension and seat depth | Checked by feel at the bench | Pull-tested per piece, seat depth written on the sheet | Stone loss and total replacement |
Write these four into the purchase order and the argument after delivery becomes arithmetic rather than recollection, priced at USD 45-320 for the 200-piece Amazon FBA Ready run.
Cost Split on a Amazon FBA Ready Piece at USD 45-320
At USD 45-320 per piece for metal Guide, the stone is roughly a quarter and labor is where two quotes for the same drawing diverge.
| Cost line | Share | What moves it |
|---|---|---|
| Base metal or alloy for metal Guide | 32% | Alloy choice and casting yield |
| Stone or melee for metal Guide | 23% | Sieve range and lot batching |
| Setting and finishing labor for metal Guide | 21% | Jig design and bench minutes |
| Plating, polish and QC for metal Guide | 14% | Per-tray versus per-piece checks |
| Packaging for metal Guide | 10% | retail-ready box with FNSKU label |
The saving in the cheapest metal Guide quote hides in the plating line and the stone grade. Both appear in season two, not on arrival, and 200 pieces leaves Wuzhou in retail-ready box with FNSKU label at USD 45-320.
Three Failures That Reach the Amazon FBA Ready Bench
stamp accuracy
A 14K stamp on 13.6K metal is a legal exposure, not a cosmetic one. Assay per lot is the only defensible check, and 200 pieces leaves Wuzhou in retail-ready box with FNSKU label at USD 45-320.
The commercial effect is refining loss plus a legal stamp correction, typically USD 15-28 per piece. Buyers who have seen it once put it in the purchase order; buyers who have not usually discover it on the first return, and at USD 45-320 for 200 pieces that is the number the buyer signs.
alloy color drift
Two alloy lots of 14K rose can read peach and copper under the same light. Holding a master color chip per order keeps a collection coherent, the figure being USD 45-320 for a 200-piece run.
Our countermeasure is a gauge and a written limit. It adds about 21 seconds per piece and removes the defect from the run rather than from the carton, shipped as retail-ready box with FNSKU label and certified GRA report.
solder joint porosity
A sizing joint soldered with too much flux pits after polish and cracks in wear. Joint inspection belongs in the final QC, not the bench, priced at USD 45-320 for the 200-piece Amazon FBA Ready run.
In a 200-piece run this typically shows on 11 of pieces. Catching it means measuring assay within 0.3K of the stamp at the tray level, not inspecting the finished carton, quoted at USD 45-320 per piece in retail-ready box with FNSKU label.
Listing metal Guide on Amazon FBA Without a Takedown
Amazon treats jewellery as a category where the packaging is part of the compliance file, not an afterthought. A poly bag with an opening of five inches or more needs the suffocation warning printed on it, and every unit needs an FNSKU label that covers the manufacturer barcode rather than sits beside it, which is USD 45-320 on the Amazon FBA Ready schedule.
For metal Guide the practical constraint is that a unit must survive a bin with other units and still read clean at unboxing. We pack each piece in a foam-backed pouch, then the retail box, then the FNSKU on the outside of the pouch, so a warehouse scan never touches the box the customer sees, and 200 pieces leaves Wuzhou in retail-ready box with FNSKU label at USD 45-320.
Weight and dimension limits decide your freight per unit more than the piece cost does. A single metal Guide in its retail box normally lands under eight ounces, which keeps it in the small standard tier. Anything above that moves a tier and eats the margin you built into the USD 45-320 quote.
Terms Behind a Amazon FBA Ready Order
The commercial frame is short enough to state in full. Minimum order is 50 pieces per design, and mixed designs travel in one shipment, so a 200-piece Amazon FBA Ready order can carry three or four models without a separate setup charge. Sample pieces leave in 3-5 days when the components are in stock, and a new model adds about twenty days before the first article exists, on a 200-piece Amazon FBA Ready order at USD 45-320.
Payment is 30 percent with the order and 70 percent against the bill of lading, with the balance window stated on the invoice rather than agreed by message. Prices quoted at USD 45-320 are FOB Guangzhou or Shenzhen; DDP is quoted separately because the duty line moves with the tariff schedule and not with our cost.
Packing follows the retail-ready box with FNSKU label format at 200 pieces to the carton, and the packing list carries SKU, size and stone size so receiving can count without opening every box. Private-label cartons add three days for the print run and must be approved before the first bulk order, not after it, which the Amazon FBA Ready file records at USD 45-320 in retail-ready box with FNSKU label.
Certification is GRA report for the lots that carry it, with a batch report and per-piece measurement of assay within 0.3K of the stamp for the lots below the threshold. The document set travels with the shipping papers, which is what a customs broker asks for at the port rather than after clearance, which is how the Amazon FBA Ready account reads it at USD 45-320.
A rejected tray is settled inside the same order cycle against the retained reference piece. If the difference sits on our retained sample we replace or credit; if it appeared in transit we split the assay cost and file with the carrier, and that rule is written on the order before the deposit clears, shipped as retail-ready box with FNSKU label and certified GRA report.
Alloy, Karat and the Cost of a Color Change
In US e-commerce, this is the single most negotiated line on metal Guide and the least documented one, and at USD 45-320 for 200 pieces that is the number the buyer signs.
At 200 pieces the arithmetic on metal Guide changes: the fixed costs spread, the variable costs do not. That is why the second order prices better than the first even when the gold fix has moved up, which the Amazon FBA Ready file records at USD 45-320 in retail-ready box with FNSKU label.
We quote both a first-run price and a reorder price for metal Guide on the same sheet so the buyer can see where the curve flattens. Most flatten by the third run, and at USD 45-320 for 200 pieces that is the number the buyer signs.
What a Report Proves and What It Does Not
Nobody quotes it for metal Guide until something goes wrong, which is exactly why it belongs in the first email, on a 200-piece Amazon FBA Ready order at USD 45-320.
Buyers who get this wrong on metal Guide usually get it wrong in the first order and correct it in the second. The cost of that correction is rarely the money; it is the four to six weeks of shelf time lost while a replacement run of metal Guide is scheduled behind other orders, which the Amazon FBA Ready file records at USD 45-320 in retail-ready box with FNSKU label.
Our approach is to write the rule into the metal Guide spec sheet before casting, then test it on the first tray. A rule that only exists in an email is not a rule, and a rule that is not tested is a hope, shipped as retail-ready box with FNSKU label and certified GRA report.
The Calendar Behind a Amazon FBA Ready Run
For retail-ready box with FNSKU label at 200 pieces, the sequence is fixed and the dates are the only thing that moves, with GRA report and retail-ready box with FNSKU label stated on the same sheet.
- Lock the spec: metal, stone size range, plating thickness, sizing band and finish, all written on one sheet.
- Pull a stock-component sample in 3-5 days and measure it against that sheet, not against the photo.
- Approve the sample in writing, including the reject rule and the retained reference tray.
- Run bulk in 15-20 days for orders under 500 pieces, with the gauge check independent of the shift.
- Ship from Guangzhou or Shenzhen with the QC sheet in the carton and the batch report by email.
MOQ stays at 50 pieces per design on metal Guide, low enough to test a shelf and high enough to keep the gauge check independent, which the Amazon FBA Ready file records at USD 45-320 in retail-ready box with FNSKU label.
The First Amazon FBA Ready Order
The point of a small first run is not the margin. It is finding out whether the supplier's paperwork survives contact with the actual goods, shipped as retail-ready box with FNSKU label and certified GRA report, the figure being USD 45-320 for a 200-piece run.
The first order is the cheapest inspection a buyer will ever run, because the volume is small enough to check every tray by hand, and at USD 45-320 for 200 pieces that is the number the buyer signs.
Getting retail-ready box with FNSKU label to US e-commerce
Export runs through Guangzhou or Shenzhen. For Amazon FBA Ready orders the GRA report file travels with the shipping documents, not separately, certified GRA report and packed retail-ready box with FNSKU label at 200 pieces.
The clearance term matters more than the rate at 200 pieces. A duty surprise can cost more than the whole freight line, and at USD 45-320 for 200 pieces that is the number the buyer signs.
The arrival check is three steps: count cartons against the packing list, weigh a sample tray, and measure ten pieces against assay within 0.3K of the stamp and color match to the master chip, the figure being USD 45-320 for a 200-piece run.
Frequently Asked Questions
What is the minimum order for metal Guide?
50 pieces per metal Guide. Designs mix inside one shipment, so a first order of three designs at 50 pieces each is normal for a new US account. Below 50 the gauge check stops being independent of the shift, the figure being USD 45-320 for a 200-piece run.
Do you supply certificates for metal Guide?
GRA report on metal Guide above the threshold stated on the quote. Below it we supply a batch report plus per-piece measurement of assay within 0.3K of the stamp, which is what a counter or a listing actually needs, on a 200-piece Amazon FBA Ready order at USD 45-320.
How do you handle a rejected tray?
We replace or credit inside the same order cycle. The retained reference tray decides: if stamp accuracy shows on our retained piece we own it, and if it appeared in transit we split the assay cost and file with the carrier, priced at USD 45-320 for the 200-piece Amazon FBA Ready run.
What are the payment terms?
30 percent deposit with the order, 70 percent against the bill of lading. For accounts on a second order we quote 30/70 with a 15-day balance window once the first shipment has cleared, which is USD 45-320 on the Amazon FBA Ready schedule.
What is the minimum order for metal Guide?
50 pieces per metal Guide. Designs mix inside one shipment, so a first order of three designs at 50 pieces each is normal for a new US account. Below 50 the gauge check stops being independent of the shift, the figure being USD 45-320 for a 200-piece run.
Next Step
If the USD 45-320 band fits your shelf, send the drawing and we will quote the 200-piece Amazon FBA Ready run inside one business day.
HOLYCOME runs this line from Wuzhou, Guangxi, through Wuzhou HengliLai Jewelry Co., Ltd. Output is about 60,000 pieces a month across metal Guide and adjacent categories. service@holycome.com or WhatsApp +86 18078079070, and 200 pieces leaves Wuzhou in retail-ready box with FNSKU label at USD 45-320.
Related reading: Metal Guide Shopify DTC: Carton Cube, Duty and the Freight Line That Surprises Buyers - HOLYCOME Buying Guides Private Label Carton: MOQ, Mixed Designs and the Real First Order - HOLYCOME
