What silver grade do you use?

925 sterling silver. We offer rhodium plating (anti-tarnish), gold plating (vermeil) and oxidising.

Do you produce silver under the client's own brand?

Yes — we deliver private label and contract manufacturing under the client's brand, with full project confidentiality.

What is the minimum order and lead time?

The minimum order is 10 pieces per design, and the lead time is usually about 6 weeks from order confirmation.

What is rhodium plating and why use it?

Rhodium plating is a thin rhodium layer over silver; it protects against tarnish and gives a bright, durable shine. We apply it as standard on request.

Do you handle hallmarking at the Assay Office?

Yes. We complete silver hallmarking in line with Polish regulations and mark the items before releasing the batch.

How do you price a silver item?

Price depends on silver weight, labour and finishing. We give the unit price after prototype approval; gold for plating and details is billed separately.

Silver jewelry manufacturer

Silver jewelry — custom and private label

Argentum is a Polish silver jewelry manufacturer with roots since 1920. In our manufacture in Koszelówka near Płock we make a full range in 925 sterling silver: earrings, pendants, rings, wedding bands, bracelets and chains — as brands' own collections and contract manufacturing (OEM/ODM) on commissioned designs. We handle short trial runs and serial production up to 15,000–25,000 pieces a month, entirely in-house in Poland (Made in EU) and in confidence.

925 fineness and finishes

We work in 925 (sterling) silver — the best durability-to-price alloy in silver jewelry. As standard we offer rhodium plating (protects against tarnish and gives a bright, white shine), gold plating (gold over silver, i.e. vermeil) and oxidising for a vintage effect. We explain hallmarks and finishes in silver and gold fineness and rhodium vs gold plating.

The full process under one roof

Design and 3D model (CAD), casting, CNC machining, laser engraving and welding, hand finishing and electroplating — all done in-house. This gives repeatable quality, control of deadlines and fast repeat runs. We can recreate an existing model, develop your sketch or design a collection from scratch.

Volumes, lead times and pricing

The minimum order is 10 pieces per design; you can combine designs in one order. Lead time is usually about 6 weeks from order confirmation, with the prototype prepared earlier. The unit price is given after prototype approval, once weight and finishing are known. We explain how volume affects price in MOQ in production.

Hallmarking and quality control

In Poland silver items must be hallmarked at the Assay Office — we complete the formalities and marking as required. Every batch passes quality control before packing: conformity with the design, plating and finishing quality. Read more on brand obligations in jewelry hallmarking and how to care for silver jewelry.

Why Argentum

A century of craft and five family generations. Over 60% of our production staff have 20+ years of experience, and our ~450 partners include brands and wholesalers across Europe. Production in Poland means Made in EU — a shorter supply chain, European standards and full quality control. See also custom production and private label.