Factory-direct wholesale since 2016-09-06 · MOQ from 20 pcs · IGI & GRA certified

Loose Lab Grown Gemstones

Loose Lab Grown Gemstones Amazon FBA Ready: The Sample Approval That Survives Product - HOLYCOME

Holycome Trade Desk · November 9, 2026 · 9 min read

Loose Lab Grown Gemstones: tolerances, cost structure and the reject rule for US wholesale buyers.

Loose Lab Grown Gemstones Amazon FBA Ready: The Sample Approval That Survives Product - HOLYCOME

The Sample Approval That Survives Production

Last April, a US buyer of loose Lab Grown Gemstones placed 200 loose Lab Grown Gemstones against a sample signed in August. The first container landed with 9 pieces that failed on sieve drift alone, and USD 5-25 landed on the buyer's P&L before a single unit sold, the figure being USD 3-95 for a 200-piece run.

Nobody on that bench was careless. They were working to a spec that existed only in a photograph, and sieve drift is what a photograph fails to define, which is how the Amazon FBA Ready account reads it at USD 3-95.

Loose Lab Grown Gemstones wholesale piece from the HOLYCOME line in Wuzhou

The fix cost about 6 seconds per loose Lab Grown Gemstone and removed the credit note entirely. That is the whole economics of a spec sheet, and it is why we write one on every quote, which the Amazon FBA Ready file records at USD 3-95 in retail-ready box with FNSKU label.

What US buyers Check Before They Sign

Four lines decide whether loose Lab Grown Gemstones at USD 3-95 sells through or comes back, and none of them appears on a typical trading-company quote.

Spec pointCommon trade outputHOLYCOME standardCost if missed
Stone colour consistencyGraded by eye under D65Colour matched to a retained master stone, per trayRepeat colour complaint in the same SKU
Sizing drift across the runNot measuredGo/no-go gauge on every size, drift held under 0.15 mmResize queue and reship cost
Clasp spring lifeSampled by handCycled 500 times on a jig per lotDetach claim and brand damage
Prong tension and seat depthChecked by feel at the benchPull-tested per piece, seat depth written on the sheetStone loss and total replacement

Put these four into the purchase order and the Amazon FBA Ready argument after delivery becomes arithmetic, priced at USD 3-95 for the 200-piece Amazon FBA Ready run.

Where USD 3-95 Per Piece Actually Goes

Cost per piece at USD 3-95 leaves little room for assumption. The table shows which line compresses and which one only moves quality.

Loose Lab Grown Gemstones setting and finish detail on a HOLYCOME factory sample
Cost lineShareWhat moves it
Base metal or alloy for loose Lab Grown Gemstones30%Alloy choice and casting yield
Stone or melee for loose Lab Grown Gemstones20%Sieve range and lot batching
Setting and finishing labor for loose Lab Grown Gemstones19%Jig design and bench minutes
Plating, polish and QC for loose Lab Grown Gemstones12%Per-tray versus per-piece checks
Packaging for loose Lab Grown Gemstones19%retail-ready box with FNSKU label

A factory with no bench minutes per piece has never costed loose Lab Grown Gemstones at USD 3-95. Ask for minutes and for the reject rule.

The Three Failures We See Most in Incoming Samples

sieve drift

A parcel sold as 2.0-2.2 mm with 15% of stones at 1.9 mm changes the setting labor on the buyer's bench. Sieve the parcel, do not sample it, which is USD 3-95 on the Amazon FBA Ready schedule.

In a 200-piece run this typically shows on 14 of pieces. Catching it means measuring size distribution within the declared sieve at the tray level, not inspecting the finished carton, certified GRA report and packed retail-ready box with FNSKU label at 200 pieces.

mixed color lots

Mixing near-colorless and G-H stones in one parcel produces a finished piece with a visible tonal step. Parcels ship by single lot, on a 200-piece Amazon FBA Ready order at USD 3-95.

The commercial effect is replacement stones plus a sorting delay on the buyer's line. Buyers who have seen it once put it in the purchase order; buyers who have not usually discover it on the first return, on a 200-piece Amazon FBA Ready order at USD 3-95.

girdle damage

Stones packed loose in a bag chip each other in transit. Individually wrapped parcels cost more and arrive usable, certified GRA report and packed retail-ready box with FNSKU label at 200 pieces.

Our countermeasure is a gauge and a written limit. It adds about 6 seconds per piece and removes the defect from the run rather than from the carton, which the Amazon FBA Ready file records at USD 3-95 in retail-ready box with FNSKU label.

Listing loose Lab Grown Gemstones 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 how the Amazon FBA Ready account reads it at USD 3-95.

For loose Lab Grown Gemstones 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, which is how the Amazon FBA Ready account reads it at USD 3-95.

Weight and dimension limits decide your freight per unit more than the piece cost does. A single loose Lab Grown Gemstone 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 3-95 quote.

Order Terms, Sample Timing and Packing

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, which the Amazon FBA Ready file records at USD 3-95 in retail-ready box with FNSKU label.

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 3-95 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 is USD 3-95 on the Amazon FBA Ready schedule.

Certification is GRA report for the lots that carry it, with a batch report and per-piece measurement of size distribution within the declared sieve 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, on a 200-piece Amazon FBA Ready order at USD 3-95.

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, and the Amazon FBA Ready quote for it sits at USD 3-95.

The Reject Tray Policy That Decides a Partnership

For loose Lab Grown Gemstones at this price band, the honest answer is a range rather than a point, and the range has a reason, on a 200-piece Amazon FBA Ready order at USD 3-95.

At 200 pieces the arithmetic on loose Lab Grown Gemstones 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, priced at USD 3-95 for the 200-piece Amazon FBA Ready run.

We quote both a first-run price and a reorder price for loose Lab Grown Gemstones on the same sheet so the buyer can see where the curve flattens. Most flatten by the third run, quoted at USD 3-95 per piece in retail-ready box with FNSKU label.

What the Quote Actually Covers

Most quotes for loose Lab Grown Gemstones describe the product and skip the part that decides whether the buyer makes money, quoted at USD 3-95 per piece in retail-ready box with FNSKU label.

Buyers who get this wrong on loose Lab Grown Gemstones 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 loose Lab Grown Gemstones is scheduled behind other orders, on a 200-piece Amazon FBA Ready order at USD 3-95.

Our approach is to write the rule into the loose Lab Grown Gemstones 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, priced at USD 3-95 for the 200-piece Amazon FBA Ready run.

How a Repeat Order Gets Built

The sequence below is fixed for a Amazon FBA Ready run. The dates move with the stone lot, not with the shipping season, shipped as retail-ready box with FNSKU label and certified GRA report.

  1. Lock the spec: metal, stone size range, plating thickness, sizing band and finish, all written on one sheet.
  2. Pull a stock-component sample in 3-5 days and measure it against that sheet, not against the photo.
  3. Approve the sample in writing, including the reject rule and the retained reference tray.
  4. Run bulk in 15-20 days for orders under 500 pieces, with the gauge check independent of the shift.
  5. Ship from Guangzhou or Shenzhen with the QC sheet in the carton and the batch report by email.

Reorders inside this sequence run 12-15 days, because the model and the gauge set stay here after the Amazon FBA Ready shipment, which is USD 3-95 on the Amazon FBA Ready schedule.

What This Means for a First Order

A first Amazon FBA Ready order of 50 pieces per design at USD 3-95 is a test of the line, not a commitment to the range.

Ask for the retained tray and the batch report with the first shipment. Both are free and both decide the second order, and 200 pieces leaves Wuzhou in retail-ready box with FNSKU label at USD 3-95.

Freight, Duty and the Arrival Check

Export runs through Guangzhou or Shenzhen. Air freight lands in 5-8 days on the US west coast and 7-10 on the east, on a 200-piece Amazon FBA Ready order at USD 3-95.

For a first order, DDP matters more than the freight rate. The surprise is the duty line, not the per-kilo charge, with GRA report and retail-ready box with FNSKU label stated on the same sheet, certified GRA report and packed retail-ready box with FNSKU label at 200 pieces.

Check the count, the weight and size distribution within the declared sieve and zero girdle chips on arrival before the carton goes to the shelf. Twenty minutes at receiving saves a season of returns, priced at USD 3-95 for the 200-piece Amazon FBA Ready run.

Frequently Asked Questions

What is the minimum order for loose Lab Grown Gemstones?

50 pieces per loose Lab Grown Gemstone. 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, shipped as retail-ready box with FNSKU label and certified GRA report.

Do you supply certificates for loose Lab Grown Gemstones?

GRA report on loose Lab Grown Gemstones above the threshold stated on the quote. Below it we supply a batch report plus per-piece measurement of size distribution within the declared sieve, which is what a counter or a listing actually needs, and at USD 3-95 for 200 pieces that is the number the buyer signs.

How do you handle a rejected tray?

We replace or credit inside the same order cycle. The retained reference tray decides: if sieve drift shows on our retained piece we own it, and if it appeared in transit we split the assay cost and file with the carrier, the figure being USD 3-95 for a 200-piece 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 how the Amazon FBA Ready account reads it at USD 3-95.

What is the minimum order for loose Lab Grown Gemstones?

50 pieces per loose Lab Grown Gemstone. 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, shipped as retail-ready box with FNSKU label and certified GRA report.

Next Step

The next step is a sample in 3-5 days, not a container. Write to service@holycome.com or WhatsApp +86 18078079070 and mark it Amazon FBA Ready, on a 200-piece Amazon FBA Ready order at USD 3-95.

HOLYCOME is operated by Wuzhou HengliLai Jewelry Co., Ltd., a factory in Wuzhou, Guangxi, producing since 2009 at roughly 60,000 pieces a month. Contact service@holycome.com or WhatsApp +86 18078079070, quoted at USD 3-95 per piece in retail-ready box with FNSKU label.

Related reading: Loose Lab Grown Gemstones Shopify DTC: How the Second Order Becomes Cheaper - HOLYCOME Colored Gemstones Private Label Carton: Alloy, Karat and the Cost of a Color Change - HOLYCOME

Topics: Loose Lab Grown Gemstones Amazon FBA Ready

Sourcing lab grown stones at wholesale?

Send us your specifications and target quantity — you will get a costed factory quotation within 12 working hours.

Request a quote

Keep reading

Related buying guides

Get a factory quote in 12 hours

Send us your stone list or design files — we quote with real factory pricing.

Products Search Quote WhatsApp