The details.

If a ring that looks the same in ten years matters to you, tungsten carbide is the pick. The scratch resistance is exceptional — harder than most materials you'll come across in daily life. The dense, heavy feel gives it a premium quality that lighter metals don't match. Polished finish stays polished. Bear in mind tungsten rings need to be sized correctly upfront — they can't be resized later. For a permanent, tough ring that holds its look through an active Kiwi lifestyle, tungsten delivers.

What 8 owners actually say.

Average 4.9 / 5 across 8 verified reviews.

Rachel★★★★★

Hi guys! I recieved the ring and i love it beyond words!!! Thank you again for the quick and reliable service and i can't wait to propose to my girlfriend!!!
Thank you again!

Nov 24
Anna★★★★★

I found the ring sizer very helpful as I didn't know what size my boyfriend's finger was and I wanted to surprise him, I love the exchange policy it gave me a lot of comfort knowing that if it wasn't exactly what he wanted he could pick one for himself! he ended up loving it and was super pleased with the quality and very impressed with the lifetime size change guarantee. I loved the shipping and arrival speed of MRO I would definitely recommend this website to friends and family.
Definitely a 5/5, although I wish MRO was a bit more competitive with their prices!

Sep 7

Caring for your Tungsten ring

Tungsten carbide is one of the hardest metals used in jewellery, scoring around 9 on the Mohs scale, so day-to-day scratches from desks, tools and gym equipment rarely leave a mark. Wipe the ring with a soft cloth and warm soapy water every week or two to lift skin oils and soap residue, then dry it fully before putting it back on. Avoid dropping it on tile or concrete — tungsten resists scratching but can chip or fracture from a hard impact.

Take the ring off before heavy lifting, contact sports or rock climbing, since unlike softer metals tungsten cannot be cut off with standard ring cutters in an emergency (medics use a vice-grip crack method instead). The polish holds for years without re-buffing, and the ring will not tarnish, oxidise or react with chlorine in pools or spas.

Common questions about Tungsten rings

Is tungsten a good metal for a men's wedding ring in NZ?

Yes — tungsten is the most scratch-resistant ring metal sold in New Zealand and holds its mirror polish through years of trades work, farming or office wear. It sits in the mid-price band (well under most gold options) and ships free across NZ. The main trade-off is that it cannot be resized, so getting the fit right at order time matters.

Can tungsten rings be cut off in an emergency?

Yes, but not with a standard ring cutter. NZ emergency departments and jewellers use locking pliers or a vice-grip to apply pressure at two points until the ring cracks cleanly into two halves, which actually comes off faster than sawing through gold. Always tell medical staff the ring is tungsten so they grab the right tool.

Will a tungsten ring turn my finger green or black?

No. Quality tungsten carbide rings use a nickel-free binder and are hypoallergenic, so there is no oxidation transfer to skin. If you see grey marks it is usually a metallic-soap reaction from heavy hand-cream or sunscreen — wash with warm water and it lifts off.

How do I get the right tungsten ring size in NZ?

NZ ring sizing uses the same A–Z letter scale as Australia and the UK, so any NZ jeweller can size you for free. Because tungsten cannot be resized after manufacture, we recommend getting sized at the end of the day when fingers are at their largest, and ordering a half-size up if you work outdoors in cold weather.

Considering alternatives?

Buyers weighing up tungsten often also look at titanium rings — both are hypoallergenic and modern, but titanium is roughly four times lighter on the finger while tungsten holds a brighter, more scratch-proof polish. Pick tungsten for weight and shine, titanium for an almost-weightless feel.