Meet Argentium.
Silver, but rarer.

You know sterling. Argentium is its evolution.

Most silver jewellery you've worn in your life has been sterling — an alloy of 92.5% silver and 7.5% copper. It's the standard. It's functional. And over time, it tarnishes, leaves marks on your skin, and loses its brilliance if you don't clean it regularly.

Argentium is what happens when metallurgists ask: what if we kept everything silver does beautifully, and systematically fixed everything it doesn't?

It was developed in the 1990s at the Middlesex University in the UK, patented, and slowly adopted by the world's most discerning jewellery and watchmaking studios. It never made it to the mass market — because it costs more, requires more skill to work with, and most buyers simply don't know to ask for it.

Reya is built on the belief that if you're wearing something everyday, it should be the best available version of that material.

What germanium actually does

The copper in standard sterling silver reacts with oxygen and sulphur in the air — that reaction is tarnish. It's chemistry, not poor craftsmanship. The only fix in sterling is to clean, and clean again.

Germanium, the element that replaces copper in argentium, is a metalloid with a different relationship to oxygen. Instead of forming dark tarnish, it creates a thin, stable germanium oxide layer on the surface of the metal — one that is essentially invisible, self-repairing, and acts as a protective barrier.

The result is a metal that resists tarnish naturally, without coatings or platings that wear off. It also has a higher melting point than sterling, which means it holds fine detail exceptionally well — important when you're crafting charms with intricate, concept-driven geometry.

A direct comparison.

Who else is building with Argentium

Argentium has been the quiet material of choice for studios and houses that care about what's actually inside their jewellery — not just the finish on the surface. It has built a loyal following among the people who work most closely with precious metals.

Independent fine jewellers across the UK, US, and Europe have made the switch, citing the reduced maintenance for clients and the cleaner quality of light the metal holds over time. Argentium has also found its way into specialist watchmaking, particularly in components where a bright, tarnish-stable silver-toned finish is required without the fragility of plating.

The Argentium Silver Guild, which governs quality standards and use of the trademark, has certified craftspeople across 30+ countries. It's a material with a proper pedigree — just not one that's been shouted about loudly in consumer markets.

In India, argentium has until now been used exclusively in B2B manufacturing for export labels — not for direct consumer jewellery. Reya changes that.

How Argentium is worked into your Reya charm

Working with argentium requires a different approach than sterling. It responds better to specific techniques — lower flux temperatures, particular quenching methods — and rewards the jeweller who understands its character rather than imposing a sterling-silver workflow on a different material.

Why this matters for how you actually wear jewellery

Luxury jewellery should earn the word "everyday." It shouldn't need to come off every night. It shouldn't need a polishing cloth in your bag. It shouldn't leave a green mark on your wrist by 4pm.

Argentium's real value isn't in laboratory data — it's in the quality of relationship you get to have with a piece of jewellery you love. You stop managing it and start wearing it. The brightness you fell in love with when you first opened the box is closer to the brightness it still holds a year later.

Micro-charm jewellery in particular benefits from this. The small, intricate surfaces that make a charm readable and meaningful — the detail in a mirror, the texture of a credit card, the lines of a chat bubble — hold their precision and their shine in argentium in a way sterling simply can't sustain over daily wear.