What do you need to specify for each jewelry category?

500 pieces per style, per plating colour, across every category. The per-colour part is what surprises buyers: each finish is a separate production batch with its own setup, so three colourways of one design is three batches of 500, not one batch of 500 split three ways.

Earrings. Anything passing through a pierced ear is limited to 0.2 µg/cm²/week of nickel release under REACH Annex XVII entry 27 — two and a half times stricter than the 0.5 µg/cm²/week limit that applies to rings, bracelets and necklaces in ordinary prolonged skin contact. That single figure eliminates most plated base metals from earring posts unless a nickel-free barrier is specified.

Category, material, quantity per style, finish with the plating thickness in microns, and the sizing dimensions for that category — ring size distribution, chain length and gauge, post diameter, cuff section, and so on. Sending these with the first enquiry is what turns a two-week back-and-forth into a one-working-day quotation.

Yes, and it usually should — a coordinated range shares tooling concepts, plating batches and packing. Each style still carries its own MOQ and each finish its own batch, so a six-style range in two colours is twelve production batches. Consolidating finishes across styles lowers the total cost more than negotiating on any single line.

Chain is made on dedicated chain-making machines, which is a different process from the stamping and machining that produce pendants and findings. Where a component is bought in rather than made, it is stated in the quotation — and bought-in findings such as clasps and extenders must meet the same nickel-release standard as the body, because they are frequently where an otherwise compliant piece fails testing.

Stamped stainless steel pieces in a single finish — flat pendants, discs, plain bands, tie bars. They carry the fewest labour operations, need no protective plating, and use tooling that is cheap relative to a die-cast or progressive die. The expensive launches are the ones with many styles, many sizes and many colourways, because each combination is its own batch.