Built for a lifetime.

Tungsten carbide is the hardest ring material we stock. Here's why it doesn't scratch, bend, or tarnish.

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.

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 black tungsten carbide ring is 8mm wide, with a concave profile and a polished finish. It is made for men who want a dark, modern band that looks different from the usual domed shape. Tungsten cannot be resized, so measure carefully before choosing a US size.

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.

Browse related: Men's Tungsten Rings | Men's Rings | Shipping & Delivery

The specs.

Width
8mm
Material
Tungsten Carbide
Finish
Polished
Edge
Tapered/Concave band
Available sizes
9 / R.5 – 12.5 / Z

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 3 owners actually say.

Average 4.7 / 5 across 3 verified reviews.

Brad C.
2021-05-03
Fast postage and great product. Very happy.
Ben O.
2019-06-12
Nice ring for the $60 sale price. MRO you should do more sales like this!
Tansy S.
2018-12-17
My partner absolutely adores this ring! Its nicely weigthed and made well. Best present i ever picked for someone!