Jewelry Materials Explained: Choosing the Right Metal & Alloy When Sourcing from China (2026)
In short: Most fashion and fine-fashion jewelry sourced from China is made from one of four material families: brass, zinc alloy, copper alloy, or surgical-grade stainless steel, each plated or finished differently (gold vermeil, rhodium, PVD). The material you pick drives tarnish resistance, nickel-allergy risk, EU REACH compliance for Irish/EU sale, and unit cost. Below is what each material actually is, how it compares on cost and durability, and how to brief a Chinese factory so the plating matches what you ordered.
What materials are most jewelry pieces made from?
Almost every mass-produced jewelry piece coming out of Guangdong and Zhejiang factories starts as one of these base metals before plating is applied.
1. Brass
Brass (copper-zinc alloy) is the most common base metal for fashion jewelry. It takes gold and rhodium plating well, holds detail in casting, and costs less than solid precious metals, but it tarnishes faster than stainless steel if the plating is thin.
2. Zinc alloy
Zinc alloy (often called "pot metal" or "white metal") is the cheapest option and dominates costume jewelry and statement pieces. It's easy to cast into intricate shapes but is heavier, more brittle, and holds plating less durably than brass.
3. Copper alloy
Copper alloy sits between brass and sterling silver in look and cost. It's popular for boho and vintage-style ranges because it ages into a warm patina, though buyers need to be told this is intentional, not a defect.
4. Surgical-grade stainless steel
316L stainless steel costs more per unit but doesn't tarnish, rarely triggers nickel allergies, and is the standard material for hypoallergenic ranges, everyday-wear pieces, and body jewelry.
Why does material choice matter for Irish and EU sellers specifically?
Jewelry sold into Ireland falls under EU REACH Regulation restrictions on nickel release, which caps how much nickel can leach from any piece in prolonged skin contact. Brass and zinc alloy pieces plated over a nickel-containing base can fail this test even if the surface plating itself is nickel-free, because the restriction covers release over time, not just surface composition.
Sellers shipping into Ireland or the wider EU should request a REACH nickel-release test report for the specific alloy and plating combination before placing a bulk order, not a generic factory certificate for a "similar" product.
How much do different jewelry materials cost to source?
Material and plating together usually matter more to landed cost than design complexity. Here's a rough comparison at typical fashion-jewelry order volumes:
| Material | Typical Use | EXW Cost Impact | Tarnish Resistance |
|---|---|---|---|
| Zinc alloy | Costume/statement pieces | Baseline | Low |
| Brass | Fashion jewelry, gold vermeil | +10-20% | Medium (plating-dependent) |
| Copper alloy | Boho/vintage ranges | +15-25% | Medium (patina expected) |
| 316L stainless steel | Hypoallergenic/everyday wear | +40-60% | High |
Which Chinese factories make each jewelry material type?
Guangdong province, particularly Guangzhou and Yiwu's trading ecosystem, handles most brass and zinc-alloy fashion jewelry casting and plating at scale. Stainless steel jewelry production is more concentrated around Dongguan and parts of Zhejiang, where factories run the heavier tooling and electro-polishing lines steel requires. For an Irish or EU-bound brand, factories with in-house REACH testing capability (rather than outsourcing it) tend to turn around compliance documentation faster.
How do you brief a factory to get the plating you actually want?
Plating is where most quality disputes happen, not the base metal. Before ordering:
- Specify plating thickness in microns (gold vermeil requires a minimum thickness to legally use the term "vermeil" in most markets).
- Request a REACH nickel-release test report matching your exact alloy and plating combination.
- Ask for a physical pre-production sample, not a digital render, to check plating evenness and stone-setting quality.
- Confirm whether the base metal is brass, zinc alloy, or copper alloy in writing - factories sometimes substitute without flagging it.
- Arrange a pre-shipment inspection to check plating consistency across the full batch, not just the sample.
Frequently asked questions
What jewelry material is best for sensitive skin?
316L surgical-grade stainless steel is the safest default for sensitive skin and nickel allergies, followed by solid titanium. Brass and zinc alloy can still trigger reactions if the plating wears through to a nickel-containing base.
Is brass or zinc alloy jewelry better quality?
Brass generally holds plating and shape better than zinc alloy over time, and it's the standard choice for gold-vermeil ranges. Zinc alloy costs less and suits lower-price-point, higher-turnover collections where longevity matters less.
Does jewelry from China meet EU REACH requirements?
It can, but compliance depends on the specific alloy and plating combination, not the country of manufacture. Always request a REACH nickel-release test report for your exact spec before shipping into Ireland or the EU - see our guide to product compliance certification when importing from China for how this testing process works.
What's the difference between gold plated and gold vermeil?
Gold vermeil is a legally defined standard requiring a sterling silver base and a minimum gold plating thickness (commonly 2.5 microns in the US, with similar thresholds elsewhere). Standard gold-plated jewelry has no minimum thickness requirement and can use any base metal, which is why it tarnishes faster.
How long does it take to source custom jewelry from China?
For an existing mould with custom plating and packaging, 20-35 days is typical. A fully custom design requiring new tooling usually runs 50-70 days once sampling and compliance testing are included.
How Epic Sourcing helps
Getting plating specs, REACH compliance, and base-metal honesty right from a factory you've never visited is exactly where Epic Sourcing's bilingual, on-the-ground teams in China and Vietnam earn their keep. We verify alloy and plating specs in person, pull REACH test reports directly from the factory, and run quality checks before your deposit is at risk - for Irish brands as well as teams sourcing from the USA, Singapore, South Africa, and the UAE. If you'd rather have an expert handle the full process end to end, our end-to-end sourcing service covers everything from factory vetting to final QC.
Ready to source a compliant jewelry run? Get in touch with our sourcing team - no pressure, no obligation.
Related reading: what a China sourcing agent actually does, our guide on car seat material types when sourcing from China, and our new Epic Guide on bakeware and baking tool manufacturers in China.
Last updated: October 31, 2026
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