9MOHS
Scratch-proof hardness
Sits just below sapphire on the Mohs scale. 4× harder than titanium, 10× harder than 18k gold — the ring looks identical on day 10,000 as day one.
Australian Owned Since 2006.
Built for a lifetime.
Tungsten carbide is the hardest ring material we stock. Here's why it doesn't scratch, bend, or tarnish.
2x
Heavier than gold
Pressed from tungsten carbide powder at 2,000°C, precision-CNC'd. Real weighted feel — nothing hollow, no plating to wear through.
∞
Lifetime warranty
If the metal ever cracks or breaks, we replace it under our lifetime structural warranty (plating, inlays and coatings excluded). One-time size swap free in the first 60 days.
In the box
- Jewellery boxBranded presentation box — gift-ready out of the parcel.
- Free ring sizerPlastic finger-sizer included, so you nail the fit first time.
- Lifetime warrantyLifetime structural warranty on in-stock modern-metal rings. Plating, inlays, resin and coatings excluded.
- Free exchange*Free swap on rings over $99 ($10 fee under $99). Tracked Australia Post on dispatch.
Dispatch
Dispatched from Brisbane — tracked Australia Post.
The details.
The heart detail gives this 8mm tungsten promise ring its character. A contrasting heart sits against the polished outer surface, adding a personal symbol to an otherwise simple band. The broad profile makes that detail easy to see, while the comfort-fit interior rounds off the inside edges.
This is a substantial-feeling ring for someone who wants the weight of tungsten and a design with a clear meaning. The polished finish reflects light more strongly than a brushed band, so it suits a preference for a brighter, more reflective look.
Tungsten carbide resists everyday scratches well, but its hardness does not make it unbreakable. Avoid hard impacts, and follow workplace rules about removing rings around machinery.
Browse Related Rings: Mens Wedding Rings, Tungsten Rings.
The specs.
- Width
- 8mm
- Material
- Tungsten Carbide
- Finish
- Polished
- Edge
- Rounded
- Available sizes
- 8 / P – 12 / Y
Not sure of your size?
Tungsten can't be resized — but in a true emergency it can be safely cut off. Best to nail the fit the first time.
What 2 owners actually say.
Average 4.5 / 5 across 2 verified reviews.
Customer reviews
4.5
Based on 2 reviews
Rubber insert
Nice ring - note it has a rubberised shape on the outer surface which I didnt notice on the website - it wasnt obvious to me - other than that all good
Exactly as pictured
The review email came 2 days before I had actually gotten the ring. So, it had me a bit worried that someone else had picked it up. I sweat it out for a few days and it did come. The description, pictures and size were exactly what was show and what I had ordered. I am just hoping I have the right size and do not need to exchange it. Super handy that they include their own ring sizer with each purchase for that just incase I had also asked for discreet shipping, just incase he was to get the mail. And they made sure their logo was not on the label. My neighbor said a very well dressed, elderly man delivered it. Perfect! Thank you very much! Here's to hoping for 0 exchanges!
Reply from Mens Rings Online July 18, 2024
Thanks Jessica for taking time to share your good customer experience with us. We make sure that the online ring photos are the same as the actual Tungsten Heart Men's Promise Ring we deliver. This is to showcase the ring's quality and design. We are happy that the ring perfectly fits. Again, thanks for choosing MRO!