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Black zirconium Wedding rings, made in Melbourne.

Innovative design always develops in tandem with innovative technology
— Dieter Rams
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A few of our existing designs.

We custom make every ring and can make almost any design.

Karbon
350.00
True Line
800.00
Antimatter
from 650.00

Unlike everyone else, we make our black zirconium rings entirely in-house.

That’s the difference.

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Monoblack has the hardness of sapphire with the internal strength of an aerospace metal.

Standard black zirconium rings

$350 entirely custom made

How scratch resistant is it?

Black zirconium will withstand most daily wear and tear exceptionally well, but is expected to show degradation eventually. How long this takes varies depending on the individual wearing the ring and how carefully it is handled. Theoretically, only materials harder than sapphire can scratch through the ceramic layer, but constant abrasion and knocks against softer surfaces will eventually cause visible damage. The black coating will mostly remain intact, and damage generally occurs on the corners of the ring.

How they’re made

Machining

Starting with a solid bar of pure zirconium, we machine it down in a reductive process to create your ring. We lab test our zirconium to ensure there are no impurities and the metal meets the international standard for grade 702 zirconium.

The ring is machined using a lathe to roughly shape the ring and then cut it from the solid bar of zirconium. From there, it is then fitted onto a manual lathe and hand machined to the final dimensions. After this stage, the hand finishing begins and we can apply the desired surface texture. We can create polished, brushed or matte finishes on black zirconium rings.

If your ring incorporates gold or platinum, the complexity of making the ring is significantly increased. It has to be made from multiple machined parts that are finally fitted together and bonded.

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Oxidising

This is where the magic happens. Oxidation occurs when a metal reacts with oxygen in the atmosphere.

For example, steel left outside oxidises to produce iron oxide on the surface, a red coloured coating we call rust.

In the case of zirconium, the natural oxidation is invisible and actually protects the metal, making it extremely resistant to the elements.

When zirconium is heated in a quartz tube furnace, this oxidation rate increases exponentially and the metal reacts to produce a much thicker oxide layer.

This oxide layer is called zirconium dioxide and is black in colour. Zirconium dioxide is also ceramic in nature, black zirconium rings don't feel like metal.

Furthermore, the oxide layer is extremely tough, it will not rub off with time and is extremely scratch resistant.