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Cushion Cut Lab Grown Diamond

Supplier Vetting: 7 Checks Before You Pay for Cushion Cut Lab Grown Diamon for Amazon Sellers - HOLYCOME

HOLYCOME · November 12, 2026 · 8 min read

Vetting a Cushion Cut Lab Grown Diamond supplier is the difference between a standing line and a drawer of samples. Seven checks decide whether the factory can

Supplier Vetting: 7 Checks Before You Pay for Cushion Cut Lab Grown Diamon for Amazon Sellers - HOLYCOME

Vetting a Cushion Cut Lab Grown Diamond supplier is the difference between a standing line and a drawer of samples. Seven checks decide whether the factory can actually make, QC and ship the Cushion Cut Lab Grown Diamond order you are promising your retail customer.

The seven-point vetting sheet for Cushion Cut Lab Grown Diamond

Run the seven checks in order. First, see the workshop floor, not just the showroom. Second, confirm the alloy and stone source. Third, ask for the QC bench and the AQL sheet. Fourth, check the sample turnaround. Fifth, read the payment terms. Sixth, ask who owns the CAD. Seventh, call two existing US buyers.

CheckPassWalk away
Workshop video/refLive floor on callShowroom only
Alloy and stone sourceNamed mills and labsGeneric claim
QC benchAQL sheet shownNo QC step
Sample time3-5 days3 weeks+
Payment30/70 against docs100% upfront
CAD ownershipWritten buyer rightsFactory keeps design
ReferencesTwo US buyersNo references

A factory that passes six of seven on Cushion Cut Lab Grown Diamond is worth a sample. A factory that passes three, even at a low price, will cost you more in returns than the discount saved.

Cushion Cut Lab Grown Diamond workshop at HOLYCOME

A buyer who only talks to the salesperson never sees the bench. Ask to be passed to a production manager for five minutes. The answer you get tells you whether the company manufactures Cushion Cut Lab Grown Diamond or merely lists it.

When two factories quote the same Cushion Cut Lab Grown Diamond piece, compare the bench count and the QC sheet, not the price. A bench of twenty with a written AQL is worth more than a bench of four with a 10 percent discount.

References on a Cushion Cut Lab Grown Diamond quote are not decoration. Call them. Ask about loose stones, plating wear, lead time slips, and whether the factory answered the phone after the deposit.

A first Cushion Cut Lab Grown Diamond sample is the cheapest insurance you will buy. Even if the design is stock, hold the piece, weigh it, test the prongs, and read the stamp before you cut bulk.

What a Cushion Cut Lab Grown Diamond factory actually does

A real Cushion Cut Lab Grown Diamond factory casts, sets, polishes, plates and QC under one roof. A trading company shows you the catalog and subcontracts every step. The price difference looks small on the quote, but the lead time, the QC and the CAD ownership tell you which one you are talking to.

Ask for the bench count. A factory with twenty benches makes about 60,000 pieces a month; a bench count of four is a workshop that will miss your Cushion Cut Lab Grown Diamond deadline in peak season.

Once you have two clean Cushion Cut Lab Grown Diamond orders, the vetting is over. The factory is now a partner. Continue the QC log, the first-article approval, and the photo pack every batch.

A buyer who only talks to the salesperson never sees the bench. Ask to be passed to a production manager for five minutes. The answer you get tells you whether the company manufactures Cushion Cut Lab Grown Diamond or merely lists it.

When two factories quote the same Cushion Cut Lab Grown Diamond piece, compare the bench count and the QC sheet, not the price. A bench of twenty with a written AQL is worth more than a bench of four with a 10 percent discount.

References on a Cushion Cut Lab Grown Diamond quote are not decoration. Call them. Ask about loose stones, plating wear, lead time slips, and whether the factory answered the phone after the deposit.

Red flags on a Cushion Cut Lab Grown Diamond supplier call

Four red flags. First, no live workshop video. Second, a sample that looks perfect but a bulk photo that looks different. Third, a refusal to put the alloy source in writing. Fourth, a price 40 percent below the market on Cushion Cut Lab Grown Diamond.

If any of these appears, the factory is not hiding something small; it is hiding the whole production step. Walk away, sample two more factories, then decide.

A first Cushion Cut Lab Grown Diamond sample is the cheapest insurance you will buy. Even if the design is stock, hold the piece, weigh it, test the prongs, and read the stamp before you cut bulk.

Once you have two clean Cushion Cut Lab Grown Diamond orders, the vetting is over. The factory is now a partner. Continue the QC log, the first-article approval, and the photo pack every batch.

A buyer who only talks to the salesperson never sees the bench. Ask to be passed to a production manager for five minutes. The answer you get tells you whether the company manufactures Cushion Cut Lab Grown Diamond or merely lists it.

When two factories quote the same Cushion Cut Lab Grown Diamond piece, compare the bench count and the QC sheet, not the price. A bench of twenty with a written AQL is worth more than a bench of four with a 10 percent discount.

Scaling from sample to standing Cushion Cut Lab Grown Diamond order

A sample order tells you the bench. A second order tells you the QC. A third order tells you the timeline. Buyers who scale Cushion Cut Lab Grown Diamond from one factory without two reference orders are the ones who get surprised by a loose-stone lot at 500 pieces.

Use the first 50 pieces as a paid interview. The price is the tuition; the information is the workshop, the QC sheet and the sample turnaround.

References on a Cushion Cut Lab Grown Diamond quote are not decoration. Call them. Ask about loose stones, plating wear, lead time slips, and whether the factory answered the phone after the deposit.

A first Cushion Cut Lab Grown Diamond sample is the cheapest insurance you will buy. Even if the design is stock, hold the piece, weigh it, test the prongs, and read the stamp before you cut bulk.

Once you have two clean Cushion Cut Lab Grown Diamond orders, the vetting is over. The factory is now a partner. Continue the QC log, the first-article approval, and the photo pack every batch.

A buyer who only talks to the salesperson never sees the bench. Ask to be passed to a production manager for five minutes. The answer you get tells you whether the company manufactures Cushion Cut Lab Grown Diamond or merely lists it.

What the factory does not tell you

A factory that wants your business will send the workshop video, the QC sheet and the US references. A factory that talks about price first and proof later is a trading company. On Cushion Cut Lab Grown Diamond, the proof is the product, not the pitch.

Ask for the bench count, the plating gauge reading, and the first-article approval process. A real factory answers these in a day. A trading company answers them in a week, after asking someone else.

Your Cushion Cut Lab Grown Diamond checklist

  1. See the workshop floor live before paying for Cushion Cut Lab Grown Diamond samples.
  2. Confirm the alloy source and stone lab in writing on the Cushion Cut Lab Grown Diamond PO.
  3. Ask for the AQL sheet the factory runs on every Cushion Cut Lab Grown Diamond lot.
  4. Time the sample turnaround: three to five days, not three weeks.
  5. Negotiate 30 percent deposit, 70 percent against documents.
  6. Put CAD ownership and non-compete window in the Cushion Cut Lab Grown Diamond contract.
  7. Call two US buyers the factory names as references.
Cushion Cut Lab Grown Diamond QC at HOLYCOME

Frequently Asked Questions

Can I vet a Cushion Cut Lab Grown Diamond factory without flying to Wuzhou?

Yes. A live video call on the workshop floor, a photo of the QC bench, and two US buyer references are enough to start a Cushion Cut Lab Grown Diamond sample order. The first 50 pieces are the real vetting. We answer every Cushion Cut Lab Grown Diamond inquiry within one working day.

What is a normal sample turnaround for Cushion Cut Lab Grown Diamond?

Three to five working days for a stock design, ten to fifteen days for a new CAD. Longer than two weeks on a Cushion Cut Lab Grown Diamond sample means the factory is a trading company. We answer every Cushion Cut Lab Grown Diamond inquiry within one working day.

Should I pay 100 percent upfront for Cushion Cut Lab Grown Diamond?

Never on a new factory. 30 percent deposit, 70 percent against copy documents and inspection photos is the standard on every Cushion Cut Lab Grown Diamond order. We answer every Cushion Cut Lab Grown Diamond inquiry within one working day.

How many US references should a Cushion Cut Lab Grown Diamond factory have?

At least two, and you should call both. Ask them about loose stones, plating wear and lead-time slips on Cushion Cut Lab Grown Diamond, not whether they are nice people. We answer every Cushion Cut Lab Grown Diamond inquiry within one working day.

What if the Cushion Cut Lab Grown Diamond quote is 40 percent cheaper than everyone else?

Ask which of the seven checks is being skipped. On Cushion Cut Lab Grown Diamond, the discount usually comes from thinner plating, softer stone or a different alloy. The landed cost after six months is higher. We answer every Cushion Cut Lab Grown Diamond inquiry within one working day.

Related Reading

Next Step

Send us the Cushion Cut Lab Grown Diamond design and your channel. We return the seven-point vetting sheet, the workshop video, and the sample within three to five days.

HOLYCOME (Wuzhou HengliLai Jewelry Co., Ltd.) has manufactured 925 sterling silver and moissanite Cushion Cut Lab Grown Diamond for US boutiques, Amazon sellers and retail buyers since 2009. Monthly capacity is about 60,000 pieces. MOQ is 50 pieces per design. Sample in 3-5 days, bulk in 15-20 days, new mould in 20 days. We run a six-station QC log on every lot, ship moissanite with a certificate and lab diamond with a grading report, and pack every piece in an anti-tarnish pouch with a foam tray. Contact service@holycome.com or WhatsApp +86 18078079070.

US buyers tell us the Cushion Cut Lab Grown Diamond line sells because the QC log travels with the carton, the asset pack arrives the same day, and reorders ship without a new sample. Standing accounts have run with us for three seasons. We answer every inquiry within one working day, return the five-line quote with the MOQ ladder, and hold the balance until the inspection photos match the approved first article.

In short: a Cushion Cut Lab Grown Diamond order is decided before the deposit. Pick the path, write the five-line quote, approve the first article, and hold the balance until the inspection photos match the sample. Stock at 50 pieces, reorder what sells in 30 days, and cut what does not. The Cushion Cut Lab Grown Diamond line turns over four times a year when the QC, the pricing and the asset pack all work together.

Send us the Cushion Cut Lab Grown Diamond design and your channel. We reply within one working day with the quote, the sample date, the MOQ ladder and the asset pack list. MOQ 50 pieces per design, sample in 3-5 days, bulk in 15-20 days. Contact service@holycome.com or WhatsApp +86 18078079070.

Topics: Cushion Cut Lab Grown Diamond

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Written by the Holycome manufacturing & quality team. Every figure and claim in this article comes from our own production floor in Wuzhou, China — in-house casting, stone setting and a three-pass quality inspection we have run since 2008.

Materials are tested for nickel, lead and cadmium release by SGS and CTT International; moissanite centre stones ship with their GRA warranty card and report. We also hold an independent SMETA / Sedex ethical-trade audit and a Hong Kong Customs AML registration.

Reviewed for accuracy by our quality team before publication. Last updated .

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