Jewellery Manufacturer: How to Choose the Right One

If you’ve googled “jewellery manufacturer” and somehow emerged more confused than you were before, do not worry, you are not alone. The market is rife with factories, trading companies and middlemen — all insisting they are the best. The HonHo Jewelry team has heard every question in the book after 16 years of manufacturing jewellery and working with more than 500 brands globally. This guide cuts through the noise and gets you the real answers buyers are looking for.

What Does A Jewellery Manufacturer Really Do?

A jewellery manufacturer is a factory or small workshop that processes raw materials such as stainless-steel, 925 silver or brass into final pieces of jewellery. That sounds straightforward, but the chasm between a factory that can do basic work and one that can serve as a true manufacturing partner is vast.

A professional jewellery manufacturer has the full production chain:

• Design consultation and CAD rendering — transforming your sketch or inspiration image into a buildable 3D model
• Material sourcing Choosing an appropriate metal grade, stone and alloy for your design
• Mold creation and prototyping — the process of making a physical sample before mass production starts
• Surface finishing and plating — applying gold, rose gold, silver or black rhodium finishes
• Quality control and inspection — making sure each item matches your approved sample
• Packaging and export — boxing, labelling, and shipping to your warehouse or directly to your customers

Not all factories do everything in house. Some outsource the plating, some skip the QC, and some use completely freelance designers. When assessing a jewellery manufacturer, knowing what’s done on-site vs outsourced really counts — it ties into both quality consistency and lead times.

What Do You Really Need: OEM or ODM?

This is one of the most asked questions on forums like Reddit and Quora and its understandable confusion as manufacturers tend to use these terms liberally.

OEM (Original Equipment Manufacturer) means you provide the design — whether laser-printed sketches, CAD files or even a competitor’s piece that you’d like to improve upon. The factory makes it to your specs, with your logo.

Because of this, ODM (Original Design Manufacturer) denotes that the factory already has a design library. You choose from their catalogue, tweak the plating, stone colour or add your logo, and they make it in your name. It’s faster, less expensive to get started (no mold fees), and works for brands that need a fast turn on seasonal collections.

Many emerging brands begin with ODM to gauge market reaction and graduate to OEM for hero products that anchor their brand DNA. As a substantial custom jewellery manufacturer, HonHo’s ODM service provides both channels under one roof, allowing you to never have to switch factories as your business expands.

Plating Quality: The One Thing Most Buyers Neglect

Here’s something that was hardly addressed on most of the manufacturer websites, but one the Reddit buyers asked most when they’d already made an order and encountered difficulties: why does my jewellery turn green after a fortnight?

The difference usually boils down to plating thickness and the technique itself.

Why Electroplating and PVD Plating Differ — And Why It Matters

Conventional electroplating fuses a thin layer of gold or silver onto the base metal by passing an electrical current through a chemical bath. This is fast and cheap, but the layer is often only 0.1 to 0.3 microns thick. That’s great for costume jewellery that you wear once to a party. It’s not fine when it comes to garments your customers will wear to the gym, pool or shower.

PVD plating (Physical Vapour Deposition) process is something completely different. Metal is vaporised inside a vacuum chamber and fused with the jewellery on a molecular level. The upshot is a coating 5 to 10 times harder than electroplating. At HonHo, the normal PVD process lays down a 0.5-micron Titanium Nitride (TiN — like, the evil dude from Pi) base layer that’s double the recommended industry amount before applying whatever colour coat above it. That’s what makes pieces truly waterproof and non-tarnish.

Here are some specific questions you can ask when vetting a stainless steel jewellery manufacturer:

• How thick is your plating in microns?
• Is it PVD, electroplating, or a combination of both?
• Do you have salt spray test data? (Forty-eight hours is a credible benchmark.)
• What do you warranty for colour retention?

If a factory can’t give the right answers to these questions, it’s one you should think twice about.

B. What are the certifications of a jewellery manufacturer?

The section is virtually nonexistent on competing manufacturer sites — which explains, in part, why buyers often find themselves on Reddit threads asking whether their Chinese supplier is legit.

Here’s what the certifications really mean, in no-nonsense terms:

Sedex Members Ethical Trade Audit (SMETA)

SMETA is a more internationally acknowledged social audit framework. It ensures that a factory complies with international standards on labour rights, health and safety, and environmental management. When a manufacturer is SMETA-certified, it means an independent auditor has physically inspected the facility. European and North American retail buyers in particular require this instance before orders are placed.

GRS (Global Recycled Standard)

GRS certification ensures that recycled materials in a product are correctly certified and that the supply chain is traceable. For jewellery specifically, this means the metals utilised can be certified as recycled content, which is becoming a necessity for eco-focused brands and retailers operating in the EU and UK markets.

REACH Compliance

REACH is EU legislation limiting the use of harmful substances in consumer products like jewellery. Compliant items are tested for the absence of nickel, lead and cadmium — three materials most commonly linked to skin reactions and health concerns. REACH compliance documentation is essential for selling jewellery in the EU.

ISO 9001

ISO 9001 is a standard for the quality management system. It does not certify the product — it certifies the processes by which it is produced. ISO 9001 factory means documented, audited workflows for production, inspection and customer complaints. It should be a standard practice for professional manufacturing operations.

HonHo has all of them: SMETA, GRS, REACH & ISO 9001 and maintains an in-house test room with independent capabilities to verify plating thickness, rust resistance & wear performance.

Minimum Order Quantity (MOQ): The Number That Makes or Breaks New Brands

MOQ is the most annoying topic in small business forums. Buyers find a gorgeous design, go talk to someone who can manufacture it for them and hear that the minimum order quantity is 500 or 1,000 pieces per style. That’s an impossible ask for a brand still trying to determine whether a product is going to move.

The truth is, there is a massive variation between MOQs depending on the production process used:

Order Type	Typical MOQ	Notes
Ready-made ODM catalog styles	30–100 pieces per style	No mold cost, fastest turnaround
Custom OEM with new mold	100–300 pieces per style	One-time mold fee applies
Fully custom casting (fine detail)	200–500 pieces	Complex designs require higher volume to justify tooling

Tooling is only justifyable at higher volume when designs are complex

MOQ * at HonHo starts from 30 pieces per style for most of the catalogue designs. This is significantly lower than most factories of similar capability. It is HonHo’s production system, which is oriented toward small-batch efficiency — critical for emerging brands, seasonal collections and labels trying out new markets.

Now, a low MOQ is not the only number you care about. Include cost of sampling, tooling fees (applicable), and per unit price on the basis of expected order volume. For example, a factory might charge $8 per piece with a 50-piece MOQ, but cost more than another vendor that has a 100-piece MOQ and charges $4.

7-Step Process: From Inquiry to Delivery

One thing buyers always notice is not on manufacturer sites though is a clear, honest discussion of what the actual process looks like from first contact to goods on your doorstep. This is how a professional wholesale jewellery manufacturer works:

• Day 1 — Design Brief: You provide reference images, sketches or existing samples. The factory verifies materials, plating, stone specs and logo needs.
• Days 1–2 — CAD Design: Engineers design a 3D rendering for your approval. At HonHo this is free and makes sure that there will be no surprise on the sample stage.
• ← Within 1 hour — Quotation: Once the design is confirmed, you receive an itemized price breakdown including unit costs at different order volumes, mold costs (if applicable), and shipping estimates.
• Days 3–7 — Mold Building: If a brand new mold is needed, it’s created based on the approved CAD file. Current catalog designs neglect this step altogether.
• Days 7–20 — Sample Production: A physical sample is created and sent for your review. 38 Some factories will ask for a sample charge, others will not. Always ask upfront.
• Days 25–35 — Mass Production: Full production starts after you approve the sample and pay a deposit. During this stage, you should get photo or video updates.

New Listing (Dispatch in 48 hours): After final QC passes, goods dispatched via DHL, FedEx or UPS. Delivery average to US, UK or EU is 7–15 days

What Most Manufacturers Won’t Tell You: The Content Gap

Looking at the competitive manufacturer sites, and real buyer conversations we have between Reddit, Quora and industry forums, here are the topics that come up over and over but rarely get addressed properly:

Design Confidentiality and IP Protection

And if you have shelled out money to design something novel, the last thing you want is for it to pop up in a factory’s public catalogue six months after placing an order. That’s a real worry — and a really widespread one.

What credible factories do: never shared design files without first getting several signed Non-Disclosure Agreements (NDAs); maintained separate secure servers for each client’s design assets; restricted staff and gave limited access to client files; negotiated encrypted file transfer protocols. HonHo features all of these as standard. Before before sending a single file, ask any manufacturer you’re considering to put their IP protection measures in writing.

Interpreting a Salt Spray Test Report

Salt spray testing is the accepted industry standard for this type of testing, simulating sweat, humidity and moisture damage to plated jewellery. A 48-hour salt spray test simulates around two years of typical daily use. When a manufacturer claims to provide test report, look for:

• The test duration (24h, 48h, 96h)
• [The outdoor exposure standard used (ASTM B117, ISO 9227 or similar)]
• No blistering, peeling or colour change in the test period as a result criteria

Manufacturers that do not present test reports or cannot interpret the results generally invest little in quality control infrastructure.

316L Stainless Steel Is Different From 304

Both grades are found in jewellery catalogues, but they are dissimilar substances. 316L contains molybdenum, which greatly enhances corrosion resistance — critical for items worn near salt water or subjected to cleaning products. 304 is suitable for most applications, but does corrode more quickly when exposed to high humidity or salt conditions. If a manufacturer specifies “stainless steel” but not the grade, the assumption is 304. If you require a waterproof performance, make sure to clearly mention 316L in your order.

The Surprising Price of “Free” Sales Pitch

Many factories advertise samples as free, only to charge express shipping that exceeds the price of a sample. Others will give you a “free” sample, but only once you’ve committed to at least a minimum production run. Get the full price of the sample — including freight to your location — in writing before you agree to anything.

How HonHo Jewelry Compares

Instead of throwing around allegations without evidence, here’s a direct comparison between us based on publicly verifiable facts:

Factor	Industry Average	HonHo Jewelry
PVD base layer thickness	0.25 microns	0.5 microns TiN (2× standard)
Salt spray test duration	24 hours	48 hours (simulates 2 years’ wear)
Plating warranty	No stated warranty	24 months colour retention guarantee
MOQ (catalogue designs)	100–500 pieces	From 30 pieces per style
Sample turnaround	14–30 days	7–20 days
New designs per year	200–300 styles	500+ styles (quarterly releases)
Certifications	ISO 9001 only (common)	SMETA + GRS + REACH + ISO 9001
In-house plating	Outsourced (typical)	Own PVD and electroplating facility

They are especially important for brands selling into EU, UK and US markets where good returns come at a high price — and customer reviews, after all, show up for everyone.

What Purchasers Are Looking for in 2025 and 2026

Over the last two years, there’s been a big movement in the jewellery wholesale market. Here’s what has changed based on conversations across buyer communities:

• Waterproof and tarnish-resisting pieces are no longer a premium feature — they’re a given. Customers shopping on TikTok Shop, Instagram and Etsy have been burned enough by cheap plated pieces going green that they now filter by “waterproof” before anything else. That means brands that sell pieces that won’t hold up to everyday wear are losing repeat customers.
• Sourcing sustainably is shifting from marketing to compliance. Many large retailers in Europe and North America are now pressing their jewellery suppliers for GRS certification and supply chain documentation. Brands looking for shelf space in these stores must have a certified manufacturing partner to support their growth.
• Hypoallergenic claims need proof. Nickel-free used to be a selling proposition. Now, buyers want to see lead-free, cadmium-free and compliance documentation in writing — not just a claim in the product listing. This is in part due to actively enforced EU REACH regulations.
• The need for fast sampling is more than ever. There’s a 4–8 week cycle for trends now. There’s just no way a manufacturer that tastes 6weeks for a sample will ever catch up. Even if unit costs are slightly higher, this brand more consistently opts for factories with 7–14 day sample turnarounds.

If you’re building a brand for 2026 and beyond, these aren’t optional considerations — they’re the very baseline your manufacturing partner needs to meet.

How to Vet a Jewellery Manufacturer Before You Pay

This section appears more on Reddit threads about how to find overseas factories. Here’s a practical checklist:

Step 1: Make sure the business is legitimate

The first thing to do is ask for the manufacturer’s business licence (营业执照 for Chinese companies) and check it through China’s National Enterprise Credit Information Publicity System. For any legitimate registered company, you will find an entry that can be verified.

Step 2: Request certification docs

Certifications must be recent and from named third-party organisations. Request to see the actual certificate PDF, not just a logo on a website. Verify the expiration date and the auditor who issues it

Third step: order a sample with tight specs

Request your material, plating is a minimum of 0.5 micron (18K gold PVD), high-polish finish and stone specification (3mm round cz, white, VS clarity equivalent). Evaluate the sample against your written spec, not based on your hopes for what it would look like.

Step 4: Do a wear test

Test the sample under real-world conditions before greenlighting production. Shower in it, sweat in it at the gym, wear it for a week. If it holds, production will hold. If it doesn’t, you’ve lost the cost of a sample not the cost of 300 faulty pieces.

Step 5: Put Payment Terms In Writing

In the case of a qualified factory, T/T in advance (30% before production, 70% before delivery) is normal. Don’t work with factories that take 100% upfront from a new buyer, or that only accept payment types without recourse (crypto, Western Union, informal transfers).

Frequently Asked Questions

Jewellery manufacturer vs jewellery wholesaler — what’s the difference?

A manufacturer makes the jewellery. A wholesaler takes finished goods from factories and sells them on in bulk, typically with no option for customisation. If you want your own designs, your own logo, or any power over materials and quality, you need a manufacturer — not a wholesaler.

But how long is it to get a sample from a jewellery manufacturer in China?

5–10 days for catalogue (ODM) designs that do not require new mold. For fully custom (OEM) designs needing new mold, the AJAX delivery is 10–20 days. Express timelines are possible, but generally come at a premium. Please make sure you confirm the sample timeline before ordering.

Waterproof jewellery: What materials are best?

316L surgical-grade stainless steel with PVD coating is the toughest choice for waterproof, tarnish proof every day use accessories. Titanium resists corrosion still better but is more difficult and costly to work with. Gold-filled (but not gold-plated) 925 silver also lasts well with the right maintenance. If the claim is “waterproof,” steer clear of brass-base pieces — brass will corrode quickly without a very thick protective coating.

What is the MOQ we should expect as a small new brand?

Some factories (including HonHo) offer as low as 30–50 pieces per style for ODM catalogue styles. Realistic minimums for new molds with custom OEM designs are typically 100–300 pieces. If you approach a factory and they quote 500+ pieces per style for catalogue basics, then that suggests their system is not set up to run small-batches.

Will sharing designs of my custom jewellery with a Chinese manufacturer be safe?

With the right manufacturer, yes. Even if you are doing it during the consult ask them to sign an NDA before sharing any of your design files. Well-regarded factories have clear design protection, such as encrypted file storage, access to files limited to particular employees only and client projects stored on separate servers. Steer clear of factories that either refuse to sign NDAs or cannot explain how they secure your data.

How can I verify if a jewellery manufacturer’s certifications are genuine?

Request the certificate document (PDF) itself and verify it with the issuing body directly. Sedex maintains SMETA audits as part of the platform. Textile Exchange Verifies GRS certificates ISO certifications are issued by accredited organizations and provide a registration number you can verify. If a factory is unable to provide certificate documents, the claims made on their website are unverifiable.

What is PVD Plating, and Is It Better Than Regular Gold-Plated?

PVD (Physical Vapour Deposition) plating is a process since then where metal molecules are ‘bonded’ to the jewellery surface under vacuum; this means you have a coating that’s up to 30x harder and far more durable than standard electroplating. Due to the coating, PVD-plated pieces are more resistant to scratching and sweat, chlorine, and day-to-day wear. Standard gold electroplating (at 0.1–0.3 microns) wears off in weeks of being worn daily. 0.5 micron and above thicker PVD plating – especially one with a Titanium Nitride base layer – can hold colour for 2+ years under normal wear conditions.

If you’re ready to research the next phase and begin building your jewellery line, feel free to reach out for a complimentary consultation with us at HonHo Jewelry. From the initial conversation to a single proof of concept sample run or complete OEM production run for product launch. To have us get started, contact us through the contact page.