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.
Shipping to the USA and worldwide
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. Return postage is at the customer's cost.
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. Return postage is at the customer's cost.
- Free exchange*Free swap on rings over $99 ($10 fee under $99). Tracked shipping on dispatch.
Dispatch
Ships from Australia with tracking.
The details.
This 8mm men's ring pairs black tungsten carbide with two stripes and a polished finish. It is a clean option for a wedding band or daily ring if you prefer a dark, simple design. Tungsten resists scratches well but cannot be resized, so check your US size before ordering.
Specifications
- Material: Tungsten Carbide
- Width: 8mm
- Finish: Polished
- Sizing: US sizes shown first; choose your size on this page
Delivery
Every order is sent with tracking. In-stock orders are usually dispatched within 1–2 business days (Monday to Friday). Delivery time depends on your country. Prices are in US dollars.
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The specs.
- Width
- 8mm
- Material
- Tungsten Carbide
- Finish
- Polished
- Edge
- Dome
- Available sizes
- 9 / R.5 – 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 4 owners actually say.
Average 5.0 / 5 across 4 verified reviews.
2023-06-30
Great to deal with, very fast delivery. The ring is comfortable and meets all the expectations that I had. Very happy.
2022-12-30
I love rings from this shop so much! They are always amazing quality, packaged beautifully and shipping is always so fast! the customer service team are so helpful, patient and understanding! They are accommodating to any questions, queries and concerns I had and answered all of them! Thank you so much for the incredible services :)))
2020-12-08
When I had questions and scepticism regarding the ring, MRO's friendly staff quickly and effectively helped me. They gave me high customer assurance. Not to mention, the quality assurance is excellent. The ring I received was the highest quality I have ever seen. It is hard, scratch resistant and everything I would like in a ring. MRO has done an excellent job in terms of their product and customer management.