A silver buyer in Milwaukee just lost four weeks of launch stock because a supplier quoted "925 silver" and shipped 80% alloy. The earrings tarnished inside three weeks, the shop got returns, and the supplier stopped replying. This is the most common failure mode in wholesale silver, and it is almost always preventable with a paper-and-rubber audit before the first PO. Below is the checklist we hand to buyers opening a new sterling line.

Verify the alloy claim, not the certificate

"925" means 92.5% silver by mass, per the sterling silver standard. A real factory can produce an XRF sheet for the batch, not a generic marketing PDF. Ask for: (1) the alloy of the base, (2) the plating microns on rhodium or 18K vermeil items, and (3) the nickel content of any solder or post. The EU Nickel Directive sets a 0.5 mg/week release limit for posts and clasps; U.S. FTC rules require a silver marking that is not misleading. If you sell into the EU, read our note on REACH and nickel release for importers.

Workshop walk-through: what you actually look at

Photos of a showroom are not an audit. A credible silver factory has five visible stations: casting or stamping, soldering, polishing, plating, and QC. Count the benches, look for dust extraction at the polishing area, and check whether the plating line has a rectifier meter on the wall. Ask for a sample of the alloy grain or a recent XRF readout from the QC room. If the sales rep declines the walk-through or photographs only the front office, treat the price as a spot price, not a partner price.

Tarnish, plating and finish tolerance

Sterling tarnishes. The question is how fast. Ask the supplier: what is the copper balance, is it Argentium-style low-tarnish alloy, and what is the plating thickness on rhodium-finish pieces? A 0.03 micron rhodium dip is cosmetic and wears off in weeks; 0.15–0.25 microns is the wholesale baseline for retail-facing earrings and rings. For a deeper dive on margins built around silver reads, see wholesale-to-retail margin formula.

MOQ, lead time and reorder logic

A silver supplier that demands 500 pieces per SKU on a first buy is optimizing for itself, not for your buy plan. The sane range for a new account is 50–100 pieces per SKU across 20–40 SKUs, with a 30–45 day lead time and a reorder window of 20 days. Compare against MOQ negotiation for small buyers and what a first PO should contain. Lock reorder pricing for 90 days in writing; silver spot moves and suppliers will quietly reprice when the London fix ticks up.

Packaging, tagging and country-of-origin

Sterling jewelry sold in the U.S. needs a quality mark (925), a maker's mark, and a country-of-origin tag. The FTC Jewelers' Guide (16 CFR Part 23) is the reference. If the supplier ships tags pre-printed with their own maker's mark, you will not be able to relabel. Ask whether they offer private labeling — see private label packaging, tags and boxes — and whether the 925 stamp is hand-punched or laser-etched.

Watch for the alloy names that are not silver at all. "Nickel silver" and "German silver" are brass alloys with no silver content; they tarnish brown and nickel-release badly. "Tibetan silver" is often a pewter-lead mix. If a listing uses any of these names without a 925 stamp, treat it as base-metal fashion jewelry and price it accordingly.

FAQ

How do I test silver without an XRF gun?

Buy a USD 120–180 touch stone kit and a small nitric acid test, plus a magnet. Real sterling is non-magnetic; the acid reaction on a 925 scratch is the milky-gold response. For legal-grade evidence on a dispute, pay for an independent XRF read at a local assay office — it costs USD 25–40 per piece.

Is "925 Italy" on the tag enough proof?

No. The mark is not verified by the tag. Ask for the actual mill ticket or assay record for the batch, and confirm the alloy matches the XRF. A printed "925 Italy" hangtag can be ordered by anyone on Alibaba.

What plating thickness should I specify in the PO?

Rhodium-finish sterling: 0.15–0.25 microns minimum. Vermeil over sterling: minimum 2.5 microns of 10K+ gold per FTC definition. Anything thinner is cosmetic and will come off in 2–6 months of wear.

How many pieces should I buy on the first order?

USD 1,500–3,500 landed, spread across 20–30 SKUs in your two best-selling categories (usually earrings and small pendants). Reorder on sell-through, not on the supplier's push.

HOLYCOME supplies 925 sterling silver wholesale in rhodium and warm silver finishes, with batch XRF sheets, private maker's marks and 50-piece-per-SKU MOQs on most lines. Ask for the current silver catalog and a 6-piece audit sample before committing a PO.