The craft
Where tradition meetsprecision.
Every Sidiore creation goes through a meticulous journey — shaped by skilled hands, refined by time, and brought to life with an uncompromising eye for detail.
01
Design concept
An idea takes form — drawn from a story, a stone, or a request.
- 01Design concept
- 02Hand sketch / digital design
- 03CAD development
- 04Prototype approval
- 05Wax printing or master creation
- 06Casting
- 07Filing & assembly
- 08Stone setting
- 09Hand finishing
- 10Polishing
- 11Plating
- 12Laser engraving / branding
- 13Multi-point quality inspection
- 14Cleaning
- 15Packaging
- 16Final dispatch
Nothing carries the name until it has passed all nine.
Materials
What makes thematerial matter?
The metal behind every creation influences how it looks, feels, wears and lasts. We choose our materials for both beauty and performance.
Beyond Argentium
Materials withoutlimits.
Argentium is where our journey begins — not where it ends.
We are expanding into modern electrum and advancing our expertise in metallurgy to develop new, innovative materials. In the future, we will create and work with proprietary alloys, bringing jewellery to life in materials that are rarer, stronger and unlike anything before.
A bolder tomorrowin the making.
Same artistry. New possibilities.
Argentium 960
The finest silver in the world.
96% fine silver, enhanced with germanium.
A high-purity silver alloy designed for greater tarnish resistance, a naturally bright finish and enhanced durability.
Is Argentium actually silver?
Yes.
Argentium 960 is 96% fine silver.
The remaining alloy, including germanium, is what gives Argentium its distinctive properties.
Argentium is a high-purity silver alloy.
The Argentium difference
A purer, brighter,longer-lasting silver.
Experience the next generation of silver — made for everyday life, without the constant maintenance.
- Stronger
- Better tarnish resistance
- Whiter
- Brighter
| Traditional sterling | Argentium 960 | |
|---|---|---|
| Purity | 92.5% silver with copper | 96% silver with germanium |
| Tarnish resistance | More susceptible to tarnishing | Highly tarnish resistant |
| Colour & shine | Traditional silver appearance | Naturally bright & white |
| Hardness & durability | Primarily work hardenable | Work & heat hardenable |
| Hypoallergenic | Alloyed with copper | Specified nickel-free |
| Firestain(dark marks in the making) | Forms during making | Firestain-free |
Keep it beautiful
Simple Care Tips
Even though Argentium is highly resistant to tarnish:
Store in a dry
pouch or boxWipe gently with
a soft cloth occasionallyAvoid chlorine
and harsh chemicals
Living with it
What you never have to do.
The six reasons above are properties of the alloy. These are the consequences of owning it — what a metal that holds its own colour and resists its own tarnish spares you, once it is yours.
- No re-plating appointment
- Nothing was laid over it, so there is nothing to renew.
- No polishing service
- A soft cloth, now and then. That is the whole of it.
- More time for what matters
- You don’t have to keep visiting stores every month for maintenance.
- Safe for all skin types
- Even for sensitive skin.
Why we choose it
Because the material matters.
We wanted a silver that could offer more — more purity, more brilliance and greater resistance to the things that naturally affect silver over time. Argentium gives us a material we believe is better suited to jewellery made to be worn, not simply admired.
- The mark
- Everything made in it is stamped Argentium.
The material matters.
So does what we make with it.
Explore the jewellery crafted from the materials we have chosen.
Explore the collection