10 Questions to Ask a Jewelry Manufacturer Before Your First Wholesale Order

1. What Is Your MOQ?

MOQ means minimum order quantity.

But one of the first mistakes new jewelry brands make is assuming that a supplier has only one MOQ.

A jewelry manufacturer may have different minimums for:

• ready-stock jewelry;
• logo engraving;
• private-label products;
• custom packaging;
• color or plating changes;
• fully custom OEM/ODM designs.

For example, at Miduoduo Jewelry, ready-stock products can generally start from 1 piece per selected variant, making it possible for boutiques and new brands to test different designs before increasing quantities.

Logo or private-label production generally starts around 100 pieces per design, depending on the product and branding process.

Fully custom OEM/ODM development generally starts around 200 pieces per design, depending on structure, material, tooling and finishing requirements.

A good manufacturer should not give you one MOQ and apply it to every type of project.

2. What Material Is Each Part of the Jewelry Made From?

If a product is advertised as 316L stainless steel, ask what that actually means.

Does it mean:

• only the main body is 316L?
• all applicable metal components are 316L?
• the clasp is 316L?
• the jump rings?
• the extender chain?
• the earring post?
• the stone setting?
• the end tag?

This matters especially for necklaces and bracelets because one finished piece may contain several different metal components.

A one-piece stainless-steel ring is often easier to verify because the metal structure may be produced as one integrated component.

A necklace can be much more complicated.

For example, a necklace may include:

main chain + pendant + clasp + jump rings + extender chain + end tag + stone-setting components.

These should be checked separately when strict material control is required.

How do you verify genuine 316L?

316L is a low-carbon, molybdenum-containing austenitic stainless-steel grade. Typical 316L compositions include chromium, nickel and molybdenum, with low carbon content; reputable stainless-steel producers identify 316L/1.4404 as a Cr-Ni-Mo grade designed for increased corrosion resistance.

Example: Why SKU-Level Verification Matters

A necklace may be listed with a 316L stainless-steel main component while its chain, clasp, extender or jump rings use another stainless-steel grade.

By contrast, a one-piece ring may have a much simpler metal structure, making full-component verification easier.

This is why professional buyers should ask for confirmation at SKU and component level instead of relying only on the product title.

If material verification is critical for your market, ask for:

• material specification;
• chemical-composition report where available;
• mill certificate where applicable;
• or independent material testing for the selected sample.
  

Important distinction

A REACH test is not the same thing as a 316L material-composition test.

A product may pass lead, cadmium or nickel-release requirements without that report proving the steel grade is 316L.

3. What Exactly Does “18K PVD Gold” Mean?

“18K PVD” is commonly used in jewelry sourcing, but buyers should still ask for the actual production specification.

PVD stands for Physical Vapor Deposition.

When evaluating a supplier, ask:

• Is the coating applied by vacuum PVD/IP?
• What is the substrate material?
• Is there a base or intermediate coating layer?
• What is the total coating thickness?
• Is the specification standard or custom?
• Does thickness vary by SKU?
• What gold tone is available?
• Has the coating been tested for the intended use?

Do not assume that the words “18K PVD” alone tell you the exact coating composition or micron thickness.

If a supplier quotes a specific thickness such as:

0.5 μm
1.0 μm
2.0 μm

ask whether that figure refers to the complete coating system or only one layer.

For higher-specification projects, coating requirements should be confirmed with the production and plating team before bulk production.

For everyday-wear jewelry

Ask the manufacturer about:

• base material;
• polishing quality;
• PVD process;
• coating specification;
• care recommendations;
• corrosion testing where required.

Avoid relying on absolute marketing claims such as:

“will never fade”
“100% waterproof forever”

A better specification is one that can actually be controlled and repeated.

4. Can I Order Samples Before the Bulk Order?

For most new jewelry brands, the answer should be yes.

A sample order allows you to inspect:

• weight;
• polishing;
• plating color;
• clasp function;
• stone setting;
• ring sizing;
• comfort;
• packaging;
• photography appearance;
• and overall perceived quality.

At Miduoduo Jewelry, ready-stock products can generally be purchased from 1 piece per selected variant, which also allows buyers to test products before scaling.

For custom OEM projects, the process is different:

Concept → Engineering/CAD → Prototype → Approval → Bulk Production

Do not approve a custom product based only on a rendering if function, fit or mechanical structure matters.

For products such as:

• modular jewelry;
• lockets;
• custom clasps;
• swimwear hardware;
• moving components;
• interchangeable charms;

a physical functional prototype is particularly important.

5. What Quality-Control Process Do You Use?

“QC checked” is too vague.

Ask what is actually inspected.

For jewelry, pre-shipment QC may include:

• plating scratches;
• surface polishing;
• missing stones;
• crooked stones;
• loose stones;
• damaged prongs;
• glue residue;
• enamel defects;
• clasp function;
• jump-ring opening;
• chain connection;
• sharp edges;
• incorrect color;
• incorrect SKU or variant;
• visible deformation.

For premium brands, it is useful to create an agreed inspection checklist before bulk production.

Can a manufacturer guarantee zero defects?

A professional manufacturer should maintain strict QC, but buyers should be cautious of an absolute promise of mathematical “zero defects forever.”

A more useful commitment is:

Products that do not meet the agreed QC standard are identified and rejected or replaced before packing.

That creates a measurable production standard rather than a marketing promise.

6. What Testing and Compliance Documents Are Available?

This question is particularly important for brands selling into the EU and UK.

REACH Annex XVII contains restrictions on substances used in articles placed on the European market, including restrictions relevant to jewelry.

For jewelry, buyers commonly ask about:

• lead;
• cadmium;
• nickel release.

For nickel release, EN 1811:2023 is the current reference test method covering articles intended to come into direct and prolonged contact with the skin and post assemblies inserted into pierced parts of the body.

But there is an important purchasing rule:

A test report applies to the tested sample/model/component and test scope stated in the report.

Do not assume that one test report automatically covers every SKU in a supplier's catalog.

Before ordering, ask:

• What SKU/model was tested?
• What components were tested?
• What test standard was used?
• When was the test performed?
• Which substances were included?
• Does the report include material composition or only chemical safety testing?

This distinction is especially important when a buyer requires both:

316L material verification

and

REACH / nickel-release compliance testing

They are related purchasing questions, but they are not the same test.

7. What Packaging Options Are Available?

Packaging should be discussed separately from jewelry MOQ.

Ask about:

• neutral packaging;
• logo cards;
• branded pouches;
• jewelry boxes;
• shopping bags;
• barcode labels;
• SKU labels;
• custom inserts.

Do not assume that every packaging component has the same MOQ.

For example:

a logo card may have one MOQ,
a jewelry box another MOQ,
and a printed shopping bag another.

For dropshipping brands, also ask:

Can my branded packaging be stored at your warehouse and used for future individual customer orders?

And if you are not ready for custom packaging yet:

Can the supplier provide blind or neutral packaging without supplier pricing or promotional inserts?

This allows brands to test products before investing heavily in packaging inventory.

8. Do You Support Private Label and OEM/ODM?

These are different services.

Ready Stock

You buy an existing product.

Private Label

You use an existing or lightly modified product but add your own:

• logo;
• engraving;
• packaging;
• branding.

OEM/ODM

The factory develops a product or specification specifically for your brand.

This may involve:

• CAD;
• new dimensions;
• new shapes;
• molds/tooling;
• custom stone settings;
• custom clasps;
• structural engineering;
• prototype development;
• custom plating requirements.

At Miduoduo Jewelry, logo/private-label projects generally begin around 100 pieces per design, while fully custom OEM/ODM projects generally begin around 200 pieces per design, depending on the technical requirements.

For an original product, ask the manufacturer to separate:

development cost
CAD cost
tooling cost
prototype cost
bulk unit cost

That makes it much easier to understand what you are actually paying for.

9. What Are the Sample, Production and Shipping Lead Times?

Never ask only:

“How long does it take?”

There are usually several different timelines.

Ready-stock processing time

For stocked products, preparation can be relatively fast. Miduoduo ready-stock orders are generally prepared within approximately 24–48 hours, subject to stock and order requirements.

Custom sample lead time

CAD, tooling and prototype production require separate time.

Bulk production lead time

Bulk manufacturing starts after:

• specifications are confirmed;
• sample/prototype is approved where required;
• payment terms are agreed.

Shipping time

Shipping should be quoted separately from production time.

For international buyers, ask:

Production time + processing time + carrier transit time = estimated total lead time.

And if you require DDP, ask whether tax-prepaid shipping is actually available for your specific country and route rather than assuming every international shipment is DDP.

10. Can You Reproduce the Same Specification on My Next Order?

This may be the most important question for a growing jewelry brand.

A beautiful first sample is not enough if your second and third production batches change.

For repeat orders, confirm:

• steel grade;
• component material;
• dimensions;
• weight tolerance;
• polishing;
• gold tone;
• PVD process;
• coating specification;
• stone size/color;
• clasp;
• logo position;
• packaging.

For higher-specification products, the approved sample should become the production reference.

A professional workflow may look like:

Approved Sample → Locked Specification → Bulk Production → QC → Repeat-Order Reference

This is especially important for brands that expect a winning SKU to become a long-term bestseller.

Wholesale Jewelry Manufacturer Checklist

Before placing your first order, your supplier should be able to answer these questions clearly:

Final Advice for Jewelry Buyers

Your first wholesale order should not only answer:

“Do I like this jewelry?”

It should answer:

“Do I understand exactly what I am buying, and can this supplier reproduce it when my brand grows?”

Material transparency, controlled PVD specifications, sample testing, documented QC and repeat-order consistency are what turn a first purchase into a reliable manufacturing relationship.

About Miduoduo Jewelry

Miduoduo Jewelry is a Dongguan-based jewelry manufacturer specializing in ready-stock and custom stainless-steel jewelry for boutiques, online sellers and jewelry brands.

Services include:

• ready-stock wholesale jewelry;
• selected 316L stainless-steel styles;
• 18K PVD gold options;
• low-MOQ sample orders;
• testing support for selected SKUs;
• private label and logo customization;
• custom packaging;
• OEM/ODM development.