Sourcing Fashion Jewellery from India: Nickel, Plating and Compliance

Fashion jewellery is the most compliance-exposed product in this guide series. It sits in prolonged contact with skin, it is bought by consumers including children, and the substances that cause problems — nickel, lead, cadmium — are invisible, odourless and undetectable without a laboratory.

It is also a category where the difference between a piece that lasts a season and one that tarnishes in a fortnight comes down to two specifications most buyers never write.

Base metal: the foundation of everything

Brass. The workhorse of quality fashion jewellery. Copper-zinc alloy, good for casting and stamping, takes plating well, and reasonably stable. Composition varies and can contain lead in some free-machining grades, which is exactly the problem you are trying to avoid.

Zinc alloy, commonly called zamak. Die-cast, cheap, allows complex shapes at volume. Softer than brass, and more prone to plating failure at edges.

Stainless steel. Increasingly used, particularly 316L, because it is corrosion resistant, hypoallergenic in the relevant grades, and can be worn unplated. Higher material cost and harder to work.

Copper and copper alloys, and pewter for some cast work.

Sterling silver, a different category entirely and covered below.

Specify the base metal and, critically, specify the composition limits for lead, cadmium and nickel in the alloy itself. An unspecified brass is whatever the foundry was melting that week.

Plating: the two specifications that decide longevity

Almost every complaint about fashion jewellery — tarnishing, discolouration, colour wearing off at edges, green marks on skin — traces to plating.

Plating thickness, measured in microns. Specify a number. A flash plate measured in hundredths of a micron will wear through on a ring shank within weeks; a heavier plate on the same design will last a season or more. Thickness should also be specified at the wear points rather than as an average, because plating is thinner on edges and inside curves.

The barrier layer. This is the specification buyers almost never write and it matters as much as thickness. Plating gold or another finish directly onto brass allows copper and zinc to migrate through the plating over time, discolouring it from beneath. A barrier layer — historically nickel, and for nickel-restricted markets a nickel-free alternative or palladium — prevents that migration.

Add:

Plating type — gold, rose gold, rhodium, ruthenium, silver, gunmetal, and the karat where relevant.

A protective top coat, usually a clear lacquer or e-coat, which substantially extends life on fashion pieces.

A corrosion test requirement. Salt spray or an accelerated tarnish test, with a stated duration and acceptance criterion. This is the single most useful objective quality measure available in this category.

Compliance: the part that stops consignments

Nickel release. Regulated in the European Union and elsewhere for items in prolonged contact with skin, and for items inserted into pierced parts of the body. The requirement is expressed as a release rate measured by a defined migration test, not as total nickel content — which means a nickel-plated item, or a nickel barrier layer under a worn plating, can fail even though the visible surface is not nickel.

Also relevant is wear and corrosion simulation before testing, because an item that passes when new may fail once the plating has worn.

Lead. Restricted in consumer products and particularly in anything accessible to children. Can be present in brass alloys, in solders, and in some crystal and enamel components.

Cadmium. Restricted, and historically found in some jewellery as a low-cost substitute in alloys and in certain platings and coatings.

Other restricted substances including certain phthalates in any plastic components, and azo dyes in fabric elements.

Toy safety requirements where a product could be classified as a children's product, which brings mechanical and small-parts requirements in addition to chemical ones.

Testing approach:

XRF screening is fast, non-destructive and inexpensive for elemental composition, and is the right first-line tool for lead and cadmium.

Migration and release testing requires a laboratory and is the definitive test for nickel release.

Test production lots, not development samples, because alloy and plating suppliers change.

Test after wear simulation where the standard requires it.

Silver: a different purchase

Sterling silver jewellery is a separate category with its own disciplines.

925 sterling is 92.5 percent silver, typically with copper making up the balance. Indian silver jewellery hallmarking operates under the Bureau of Indian Standards, and a hallmark carries purity and other identifying marks.

For a buyer:

Verify purity independently on a first order. Assay on a sample is inexpensive against the value of a silver consignment, and under-karating is the classic risk in precious metal.

Specify weight per piece with a tolerance, since silver is sold substantially by weight and a piece delivered lighter than specified is materially less product.

Specify anti-tarnish treatment, because sterling tarnishes readily. Rhodium plating, e-coating or anti-tarnish packaging each address it differently.

Specify the finding metals — the clasps, posts, earring backs — which are frequently base metal even on a sterling piece and which are what actually contacts skin. This is a common and legitimate practice and a common source of a nickel compliance failure, because the compliance risk sits in the component nobody specified.

Gemstones and settings

Where stones are involved, several further specifications apply.

Stone type, and whether natural, treated, synthetic or simulant. This is a disclosure matter as much as a specification one, and misdescription is a serious problem in some markets.

Treatment disclosure, since a large proportion of gemstones on the market are routinely treated — heated, filled, irradiated or dyed — and disclosure requirements vary by market. Treatment is not a defect; undisclosed treatment is a legal and reputational problem.

Size, cut and quality parameters appropriate to the stone.

Setting security, with a defined pull test on a sample of stones and a stated force. Stone loss is the most common consumer complaint on set jewellery, it generates returns rather than just dissatisfaction, and unlike most quality attributes it is directly testable before shipment for almost no cost.

Adhesive where stones are glued rather than set, with its own bond strength requirement and a heat and humidity resistance specification. Glued stones are entirely normal in fashion jewellery at most price points, and the adhesive — not the stone or the setting — is where quality varies and where failures originate.

How a piece is actually made

Understanding the production chain explains where cost and quality are decided.

Design and model making. A master model is made, historically by hand and increasingly by CAD and 3D printing.

Mould making. A rubber or silicone mould is taken from the master, from which wax patterns are produced.

Casting. Wax patterns are assembled onto a tree, invested in plaster, burned out and cast with molten alloy — the lost wax process. Alternatively, pieces are die-struck or stamped for high volume.

Cutting, filing and assembly. Sprues removed, components joined by soldering or welding, findings attached.

Polishing. Multiple stages, and a major determinant of the final appearance. Under-polishing before plating shows through as a dull or textured finish.

Plating. Cleaning, activation, barrier layer, then the final finish.

Stone setting, before or after plating depending on the stone and the setting method.

Lacquering or e-coating, where specified.

Final inspection and packing.

Two buyer-relevant consequences. Polishing quality is largely invisible after plating and entirely determines how the plating looks — a piece plated over a poorly polished surface cannot be rescued. And stone setting after plating risks damaging the plating, while setting before plating risks damaging the stone; the sequence a manufacturer uses tells you something about which risk they prioritise.

Reading a quotation properly

Jewellery quotations vary enormously in what they specify, and the gaps are where the cost differences hide.

The pattern is consistent: the fields that determine whether a piece survives a season are the fields most likely to be missing from a quotation. Send every supplier the same written specification with all of them filled in, and the comparison becomes real.

Where it is made

Jaipur, Rajasthan. The traditional centre for silver and gemstone jewellery, with exceptional depth in stone setting, cutting, enamelling (*meenakari*) and traditional Indian forms. The natural choice for hand-worked silver and stone-set pieces.

Rajkot, Gujarat. Volume fashion and imitation jewellery with mechanised casting and plating.

Mumbai. Fashion jewellery, plus a substantial fine jewellery and diamond trade.

Moradabad, Uttar Pradesh. Metal artware and fashion jewellery.

Coimbatore, Tamil Nadu. Casting and fashion jewellery.

Kolkata. Traditional gold and silver work.

Surat, Gujarat, for diamond cutting and polishing, which is a distinct and very large trade with its own conventions.

The practical guidance: Jaipur for hand-worked silver and stone-set pieces, the western clusters for volume plated fashion, and match the cluster to whether your product is craft-led or volume-led.

Pricing and MOQs

Fashion jewellery pricing decomposes into metal, labour, plating, stones and tooling, in proportions that vary enormously by product.

Metal. Small in a plated fashion piece, dominant in sterling silver. For silver, the metal price moves with the market and a quotation is usually valid for a short window.

Labour. The largest share in hand-worked and stone-set pieces, and the reason Jaipur silver work is priced differently from Rajkot casting.

Plating. A real cost that scales with thickness, and the first place a supplier reduces to meet a price.

Stones. Highly variable, from inexpensive glass and cubic zirconia to genuine gemstones.

Tooling. Mould making per design, amortised across the run. This is why MOQs exist in casting — a mould has to be paid for.

On MOQs, the practical structure mirrors handicraft: per design, minimums are often modest — a hundred to five hundred pieces is common for a cast fashion piece — because the mould cost has to be spread. Per order, the manufacturer wants enough total volume to justify a plating run and the documentation. A mixed order across many designs at modest quantities each is usually accepted where a single design at low quantity is not.

Where the negotiating room sits: design simplification, which reduces both casting complexity and finishing labour; stone specification, frequently over-specified for the price point; volume across designs rather than depth in one; and plating thickness, though that is a trade against longevity rather than a saving.

Packaging and presentation

For a consumer product this is part of the product rather than a logistics detail.

Anti-tarnish protection is the functional requirement. Silver and many plated finishes tarnish in ordinary air, and a piece that spends six weeks in a container and three months in a warehouse can arrive at the customer already dull. Anti-tarnish bags, tabs or barrier films address it, and they are inexpensive.

Individual protection against scratching, since pieces abrade against each other in transit.

Retail presentation, where you are buying finished packaging — boxes, cards, pouches — with its own specification, print quality and, increasingly, its own recyclability requirements.

Labelling, which for jewellery frequently includes material composition, country of origin, and any care or allergen information required in your market.

Two practical points. Specify anti-tarnish protection explicitly, because it is omitted by default. And if you are buying retail-ready packaging, treat it as a second product with its own specification and inspection, because a beautiful piece in a crushed box is a returned item.

Verifying a jewellery supplier

The four-layer approach in our supplier verification guide applies, with four sector-specific additions.

Ask to see the plating line. Electroplating baths, rectifiers, rinse tanks, filtration and drying. This is where your product's longevity is determined, it is capital equipment that either exists or does not, and it takes thirty seconds on a video walk to establish whether a supplier plates in-house or sends work out.

Ask about plating thickness control. How they measure it, how often, and with what instrument. A manufacturer with an XRF thickness gauge and a measurement log is controlling the process and can hold a specification; one who describes plating only by time in the bath is running to a recipe and will drift as bath chemistry ages. Ask to see the log, not just the gauge.

Ask about compliance testing. Which standards they test to, which laboratory they use, on what sampling basis, and how often. Then ask to see recent reports issued for other customers with details redacted — a manufacturer routinely supplying European or North American buyers will have a folder of them, and a manufacturer who has never been asked will not.

Ask about the finding supply chain. Clasps, posts, earring backs and jump rings are frequently bought in from specialist suppliers rather than made in-house, and they are frequently where a nickel failure originates — because they are the components in longest, closest contact with skin and the ones nobody specified. A manufacturer who can name their findings supplier and produce compliance data for them is managing the risk; one who has never considered the question is carrying it on your behalf.

Ask whether casting and plating are in-house. Both are capital-intensive and both are frequently subcontracted, which means the facility you audited may not be where your product's quality is determined. This is not disqualifying — subcontracted plating can be excellent — but you need to know, and the subcontractor should be in scope for your inspection.

Inspecting jewellery

Jewellery inspection is unusually amenable to objective measurement, and a well-briefed inspection catches most problems.

Weight per piece. Directly measurable, and the fastest check on whether metal content matches specification. Particularly important for silver.

Dimensions against the drawing or approved sample.

Plating thickness by XRF, which is non-destructive and gives a reading in seconds. If your supplier has a gauge, ask for readings; if not, an inspection agency can bring one.

Composition screening by XRF for lead and cadmium.

Setting security by a defined pull test on a sample of stones.

Function, where there are moving parts — clasps opening and closing, hinges, screw fittings.

Finish quality — polish, absence of casting porosity, solder marks, file marks, and consistency across a lot.

Findings present, correct and matching the specification.

Packaging correct, complete and protective.

Two structural points. Inspect during production as well as pre-shipment, because a plating problem found at twenty percent can still be corrected on the balance. And retain sealed reference pieces from each approved run, so a later shipment is judged against what was actually accepted rather than against an original sample that may itself have been exceptional.

Common failure modes

Six problems account for most complaints, and every one maps to something specifiable.

Tarnishing within weeks. Thin plating, no barrier layer, no top coat. The commonest complaint by a wide margin.

Plating wear at edges and contact points. Plating is naturally thinner on edges; specify thickness at wear points rather than as an average.

Green marks on skin. Base metal migrating through worn or inadequate plating, usually copper from brass.

Skin reaction. Nickel release, most often from a finding rather than from the main body of the piece.

Stone loss. Inadequate setting or poor adhesive. Testable with a pull test before shipment.

Clasp and finding failure. Bought-in components at a lower specification than the piece they are attached to.

Note that three of the six originate in the findings or the plating rather than in the visible design — which is precisely why those are the two areas to specify hardest and the two most likely to be omitted from a quotation.

A first-order checklist

1. Specify base metal with composition limits for lead, cadmium and nickel.
2. Specify plating type, thickness in microns at wear points, and the barrier layer by name.
3. Specify a protective top coat where the product warrants it.
4. Specify a salt spray or accelerated tarnish requirement with duration and acceptance.
5. Name the compliance standards for your market and require testing on production lots.
6. Specify findings separately, because they contact skin and are often bought in.
7. For silver, specify purity, weight per piece with tolerance, and anti-tarnish treatment.
8. For stones, specify type, treatment disclosure and a setting pull test.
9. Specify packaging with anti-tarnish protection.
10. Retain sealed reference samples and test on arrival.

Responsible sourcing and disclosure

Two areas increasingly matter to buyers building brands in this category.

Mineral and metal provenance. For precious metals and for stones, buyers are increasingly asked where material originated. Recycled silver is available and is a legitimate and evidenced claim where the supplier can support it. For gemstones, origin disclosure varies by stone and by market, and claims should be limited to what the supply chain can actually demonstrate.

Labour conditions. Parts of the Indian jewellery trade — particularly hand-set and hand-finished work — involve small workshops and home-based labour, which is harder to audit than a factory floor. This is the same structural issue covered in our handicrafts guide. If ethical claims are central to your positioning, budget for an audit that reaches the actual production points rather than the exporter's office.

Treatment disclosure for gemstones is a legal requirement in several markets and an ethical expectation in most. Many stones are routinely treated and treatment is not a defect; failing to disclose it is.

The workable position is the same across all three: verify what is verifiable, evidence what you claim, and say nothing you have not checked. In a category built substantially on brand trust, an unsupported claim is a larger commercial risk than a missing one.

Lead times

For an existing design from an established supplier, four to eight weeks of production is typical for a container-scale order, plus documentation and shipping.

For a new design, add mould making and sampling — commonly three to six weeks before production begins, and more where multiple sample iterations are needed. Stone sourcing can extend it further if a specific stone is not held in stock.

Three things reliably cause delay. Mould and sample iterations, which are normal and should be planned for rather than treated as a supplier failure. Plating capacity, since plating is often batched and a small order waits for a run. And findings supply, which as elsewhere is the component most likely to be late because it is the one nobody tracked.

The seasonal pattern matters too: Indian domestic jewellery demand surges around the wedding and festival seasons, which pulls capacity — particularly in silver — and lengthens lead times for export orders placed in those windows.

Where Katalyzon fits

We do not manufacture and take no position in the goods, and nothing here is regulatory advice — a consumer product entering a regulated market needs your own compliance function or a consultant.

What we do is establish whether a supplier owns casting and plating or subcontracts them, verify registrations and certifications against evidence we can show you, and coordinate the testing that confirms a production lot meets your market's chemical requirements before your money moves.

Browse the Jewellery category for indicative specifications and MOQs, or post a requirement and our desk will scope it. Every brief is read by a person before anything is routed, and your details stay masked until you accept a quote.

For quality control on variable production, see our guide to sample versus bulk production. For counterparty vetting, our supplier verification guide. For how our verification tiers are defined, our methodology.

The short version

Write two specifications most buyers omit — plating thickness in microns at the wear points, and the barrier layer by name — and you will remove most of the quality complaints this category generates.

Then treat chemical compliance as a legal requirement rather than a quality nicety. Nickel release, lead and cadmium are restricted in most consumer markets, the liability sits with you as importer, and none of them is visible. Screen composition by XRF, test nickel release in a laboratory on production lots, and remember that the findings — the clasp, the post, the earring back — are what actually touches skin and are frequently the component nobody specified.