Is black zirconium good for a wedding ring?

Is black zirconium good for a wedding ring?

Yes. It is the way to have a black wedding ring that stays black. Heating zirconium forms a black ceramic oxide at its surface, so the colour is part of the metal itself rather than a coating laid on top. There is nothing to flake or replate.

That surface is hard. At around 8 on the Mohs scale it is harder than titanium at 6 and far harder than gold at 2.5 to 3, so it shrugs off the everyday knocks that mark other rings. Underneath is zirconium, which the Royal Society of Chemistry describes as a hard, silvery metal that is very resistant to corrosion.

It is also light and kind to skin, which is why so much of our range is made in it: plain bands, gold and wood inlays, patterns and diamond set designs.

Black zirconium wedding bands: Every black ring in the range, plain, inlaid, patterned and diamond set, made to order in your size.

What does a black wedding ring mean?: No official meaning, one recognised symbol and what black rings are made of.

Black ceramic or black zirconium?: Why a ceramic surface over metal wears differently from a ring that is ceramic right through.

Does black zirconium scratch or wear off?

It is scratch resistant rather than scratch proof. The oxide sits at around Mohs 8, above the quartz in ordinary dust at Mohs 7, which is what puts fine marks on softer metals. So everyday wear leaves it looking as it did.

A hard knock against stone or steel can mark it and show the lighter metal underneath. A pale line is often metal rubbed off something else onto the ring, which cleans away with soapy water. Our maker refinishes black zirconium depending on the damage.

That is the real difference from a black plated ring. Plating is a thin coat that wears through with ordinary use; the black on zirconium is the surface of the metal itself, so ordinary wear does not rub through it.

The most durable wedding ring metal: Every metal ranked for scratches and for wear.

Black zirconium or black tungsten?: Why a grown oxide outlasts a coating and how tungsten compares on weight.

Why black plating wears off: What black plating is, why it rubs through and how a grown black surface differs.

How to look after a wedding ring: Cleaning and care for every ring metal, black zirconium included.

How heavy is a black zirconium ring?

Light, with a little more presence than titanium. Zirconium weighs about 6.5 grams per cubic centimetre (6.52 in the Royal Society of Chemistry's figure). In our ring weight model a court band in UK size N comes to about 1.1g at 2mm wide, 2.1g at 4mm, 3.2g at 6mm, 4.2g at 8mm and 5.3g at 10mm.

The same 6mm band weighs about 2.2g in titanium, 5.6g in 9ct gold, 7.7g in 18ct gold and 9.8g in platinum. So black zirconium is about 1.4 times the weight of titanium and well under half the weight of 18ct gold: enough to feel, never heavy, even in a wide band.

How much does a black zirconium ring weigh?: Every width from 2 to 10mm in sizes H to X, against other metals.

Is black zirconium safe for sensitive skin?

Yes. Zirconium is hypoallergenic. Our maker specifies Zr 702 zirconium with 0% nickel for these rings. Nickel is the metal most associated with reactions to jewellery, so a black zirconium ring is a good choice for a hand that has reacted to a ring before.

If a ring ever leaves a rash, soap or moisture trapped under the band is a common cause. Our guide to metal allergies covers the metals that suit sensitive skin.

Metal allergies and hypoallergenic rings: Which ring metals suit sensitive skin and what to look for in white gold.

Can a black zirconium ring be resized?

Not in the usual way. The black is grown into the surface of the metal, so cutting or machining the band would show bright metal underneath. That is why the size is settled before the ring is made. Every ring is made to that measurement.

Getting the size right is quick: the free ring size finder measures your finger at home in a couple of minutes. You can also order with the size still to be confirmed. We check it with you before anything is made.

Ring size finder: Measure at home in about two minutes.

Can black zirconium and titanium rings be resized?: Why each metal differs and how to size right.

Can a black zirconium ring be cut off in an emergency?

Yes. Our maker's technical documentation says its black zirconium can be removed with a heavy-duty manual ring cutter or bolt cutters and does not shatter under pressure. In an emergency, tell the responder what the ring is made from and let them choose the equipment.

How to get a stuck ring off: What to try at home first, then when to stop and get it seen.

Can a titanium ring be cut off?: What hospitals use on titanium and black zirconium, plus when to take a ring off.

Is a black zirconium ring hallmarked?

No. It does not need one. UK hallmarking law covers gold, silver, platinum and palladium. Zirconium is not a precious metal under the Hallmarking Act, so the absence of a hallmark says nothing about the ring's quality.

A black zirconium ring with a solid gold inlay is different: the gold is precious metal, so those rings are hallmarked for the gold they carry.

UK hallmarks explained: What a hallmark proves, which metals must carry one and how to read the marks.

Black zirconium or titanium: which should you choose?

Choose black zirconium for a black ring with a harder surface than titanium and a little more weight. Choose titanium for the lightest ring we make, in its natural grey or brushed silver. It can often be made slightly larger later.

The two do not have to match: a black band and a titanium band sit well side by side.

Seeing both on your own hand settles it quickly: the free ring try-on draws any of our black zirconium or titanium bands onto a photo of your hand.

Black zirconium or titanium?: The two modern metals compared, gram for gram.

Is titanium good for a wedding ring?: Weight, scratches, skin and resizing for titanium.

Ring try-on: See black zirconium and titanium on a photo of your own hand. Free.