What questions to ask a tennis jewellery manufacturer?

Start with a controlled product specification rather than a reference photo alone. Confirm the finished length, usable width, stone count, stone dimensions, setting style, articulation between links, clasp construction, base metal, surface finish, plating requirement, and allowable dimensional variation. The manufacturer should also identify which details are fixed and which may change after tooling or sampling. This prevents a common misunderstanding: visual similarity does not establish mechanical equivalence. Ask for a technical drawing or approved sample record showing the measurement points, component materials, and acceptance criteria that will govern production.

Durability depends on the relationship between setting geometry, stone fit, link movement, and clasp security. Prongs, bezels, or channel structures must hold stones without obstructing the intended surface appearance or creating snag points. Flexible tennis designs also need controlled articulation; excessive movement can place stress on settings, while insufficient movement can make the bracelet uncomfortable and concentrate force at individual links. Ask for the proposed setting method, inspection points for loose stones, clasp-cycle expectations if tested, and the procedure for handling setting defects. A responsible supplier should explain limitations rather than describe every construction as equally suitable.

No single plating test predicts real-world wear in every market because exposure varies with sweat, cosmetics, water, friction, storage, and use frequency. Ask the supplier to define the plating system, stated thickness where applicable, substrate preparation, adhesion method, color standard, and test conditions. Useful evidence may include adhesion evaluation, abrasion or rub testing, corrosion-related testing, and material-compliance documentation, but the buyer should review the actual method and pass criteria rather than accept the word durable. Market requirements also differ, so tests should be selected for the destination market and the product’s expected wearing conditions.

The buyer should request the stone category, composition, treatment status where relevant, dimensional tolerance, color and clarity range, replacement policy, and traceability available for the selected supply route. Fashion jewellery may use natural, synthetic, or imitation stones, and those terms should not be used interchangeably in product descriptions. Ask how incoming stones are checked against the approved sample, how mixed batches are controlled, and whether substitutions require written approval. Documentation should align with the claims made to retailers and consumers. If a market requires specific disclosure, the brand—not only the factory—must verify that labeling and marketing language are accurate.

Sample approval should be a documented gate, not an informal message that the piece looks acceptable. Compare the sample against the drawing or tech pack for dimensions, weight, stone alignment, setting security, clasp operation, polish, plating color, logo placement, and packaging presentation. Record approved photographs, tolerances, revisions, and the authorized decision-maker. Ask whether the production reference sample is retained and how deviations are handled after approval. A pre-production sample may reveal tooling or assembly issues that a digital rendering cannot show, so commercial quantities should not proceed until the physical standard and inspection criteria are agreed.

The shipment file should match the purchase order and the claims made for the product. Depending on the project, request a final inspection report, quantity reconciliation, defect classification, approved reference comparison, material or plating documentation, packing list, carton details, and any agreed test or compliance records. Clarify whether inspection is performed on every piece or under a sampling plan, and define acceptable limits for loose stones, scratches, discoloration, clasp faults, and dimensional variation. RoHS or REACH-related statements should be tied to the applicable materials and documentation available for the order; they should not be treated as a substitute for finished-product inspection.