- Tungsten carbide is one of the hardest materials on Earth — rated 8.5–9 on the Mohs scale, just below diamond.
- 18K ion plating bonds at a molecular level — far more durable than the standard PVD coating used by most competitors.
- Every TUNGRA ring is 8mm wide with brushed finish, polished bevelled edges, and a comfort-fit black interior sleeve.
- Every ring includes a complimentary silicone band, luxury presentation box, and free UK delivery. Free ring sizers available on request.
- Five finishes: silver, gunmetal, black, 18K gold, and 18K rose gold — all lifetime guaranteed.
A ring you wear every day will go through everything you go through. Every workout, every job site, every commute, every season. Whether it marks a wedding, an anniversary, a personal milestone, or simply a decision to wear something well-made — it needs to be built for that. TUNGRA is.
TUNGRA is Foundoria's precision tungsten collection — no inlays, no material story layered on top. Just tungsten carbide at its most refined, delivered in five distinct finishes with the same uncompromising specification across every ring. The durability of the toughest commercially available ring metal. The finish detail of a premium jewellery piece. And everything included from day one: a luxury presentation box, a complimentary silicone band for active wear — all shipped free to your door.
Tungsten carbide is rated 8.5–9 on the Mohs scale — harder than virtually every material a ring encounters in daily life. Keys won't scratch it. Tools won't scratch it. Gym equipment won't scratch it. The finish you choose on day one is the finish you have on day one thousand. No polishing. No jeweller visits. No visible evidence of the life you've lived in it.
Gold scratches with normal wear. Silver scratches readily. Titanium develops surface marks over time and needs refinishing. Tungsten doesn't. For anyone who works with their hands, trains regularly, or simply wants a ring that handles daily life without a second thought, tungsten isn't just a practical option — it's the rational one.
Every TUNGRA ring comes with a lifetime warranty. If something is wrong, we'll address it. And because tungsten cannot be resized, we offer free size exchanges if the first size isn't right — and a free ring sizer is available on request before you order.
Also included with every TUNGRA ring: a complimentary silicone band — an enduring companion for when a metal ring isn't appropriate. For the gym, the job site, or anywhere that calls for flexibility over formality, the silicone band keeps something on your finger without compromise. For those looking for a wedding band that genuinely keeps up with their lifestyle, TUNGRA delivers both — the precision tungsten ring for every occasion that calls for it, and the silicone band for everything else.
Every ring in the TUNGRA collection is built to the same specification. That consistency is deliberate — it reflects a design philosophy that a well-engineered band doesn't need reinventing, only executing with precision.
8mm width. A substantial band that sits with presence on the hand. Wide enough to make a statement without being dominant — visible and deliberate, for those who want a ring that's noticed rather than overlooked.
Brushed centre with polished bevelled edges. The contrast between textures is intentional. The brushed centre gives each ring a contemporary, tactile quality that plain polished bands lack. The polished bevels catch light at the edges, adding definition and depth to what is otherwise a clean, minimal form.
Polished black comfort-fit interior. The interior sleeve serves two purposes. The comfort-fit profile — a slightly domed inner band — reduces contact area against the skin, making the ring easier to wear for extended periods. The polished black finish is a considered detail: consistent across every ring in the collection regardless of exterior finish, it gives the inside of the ring its own character rather than leaving it as an afterthought.
1.8mm band thickness. Engineered for durability without bulk. The wall thickness is sufficient to give the ring structural integrity while keeping the overall profile clean and wearable.
If you're comparing tungsten rings, one of the most important questions to ask is how the colour finish is applied. Most gold and rose gold tungsten rings on the market use standard PVD coating — a physical deposition process that applies a thin film to the surface. It looks good initially, but the bond is relatively superficial. Under sustained daily wear, particularly on high-contact areas, PVD coatings can wear through noticeably within months.
Aurion and Roseon use ion plating — a plasma process that creates a metallurgical bond between the precious metal layer and the tungsten substrate. The colour is bonded at a molecular level rather than sitting on top of it. The result is significantly more resistant to wear, chipping, and colour degradation over time. For a ring you're committing to for life, that difference in process matters.
The 18K specification matters equally. Higher karat plating uses a purer gold alloy, producing a richer, more saturated colour than the muted tones of cheaper plating. Aurion's gold reads as gold — warm, deep, and consistent — rather than the pale yellow that budget alternatives produce.
Every TUNGRA ring arrives in Foundoria's luxury grey clamshell presentation box — the same packaging used across all Foundoria collections. It's the detail that makes a TUNGRA ring a gift, not just a purchase. Whether you're buying for yourself or presenting it at a ceremony, the unboxing experience is considered from the first moment.
Inside the box: your tungsten ring, a complimentary silicone band, and care instructions. If you're unsure of your size before ordering, a free ring sizer is available on request.
Silver (Argentis). The most traditional of the five. Brushed silver tungsten reads as clean, versatile, and quietly confident — it pairs with almost any outfit and sits comfortably alongside a partner's ring regardless of their metal choice. The go-to for those who want the durability of tungsten without announcing it.
Gunmetal (Titanis). A darker, cooler tone than silver — contemporary without being confrontational. Gunmetal suits those who want something with a modern edge while keeping the silhouette refined. It has an industrial quality that silver doesn't, which appeals to a specific kind of understated style.
Black (Obsidis). The boldest of the plain finishes. A matte black band with a seamless monochromatic interior makes a statement about commitment to a particular aesthetic — modern, minimal, uncompromising. The matching interior is what separates Obsidis from black rings that feel like costume jewellery: the consistency of finish throughout gives it a considered quality.
18K Gold (Aurion). The warmth of gold without the maintenance, the cost, or the susceptibility to scratching. Aurion delivers the visual language of a traditional gold wedding band in a metal that will outlast it in every practical category. For those who want gold but won't accept a ring that shows every encounter with the world, this is the rational choice.
18K Rose Gold (Roseon). The warmest tone in the collection — softer than yellow gold, with a distinctly contemporary character that has become one of the most popular choices in men's wedding jewellery. Roseon suits those who want something with genuine warmth and a slightly unconventional edge, without committing to an inlay or a more dramatic design.
Five finishes. One specification. All available from the TUNGRA collection with free UK delivery, a complimentary silicone band, and a lifetime warranty.
TUNGRA is for the buyer who wants a ring that simply works — one that holds its finish, carries real weight, and asks nothing of you beyond wearing it. Whether it marks a wedding, an anniversary, or simply a decision to wear something well-made every day, the proposition is the same. Every ring ships with a complimentary silicone band, luxury presentation packaging, free UK delivery, and a lifetime warranty. A complete package, not a ring with extras bolted on.
If you're based in the UK, there's a practical advantage worth noting: Foundoria is a UK business. Free delivery, no import duties, no transatlantic shipping delays. For a ring you're buying once and wearing every day, that matters.
If you're drawn to a natural material — something with a story tied to a landscape or a piece of cosmic history — the CERVUS, CELESTIUM, or WELDWOOD collections are worth exploring. But if the ring itself is the statement — durable, considered, and built to last — the decision ends here. If you're between sizes, go half a size down. The full ring sizing guide covers everything you need.
Ion plating bonds at a molecular level and is significantly more durable than standard PVD coating. Under normal daily wear, the finish on Aurion and Roseon will outlast cheaper gold-plated rings by a considerable margin. As with any plated finish, sustained contact with abrasive materials or harsh chemicals over many years may cause gradual wear — but for everyday wear, the finish is built to last.
The interior sleeve is a polished black comfort-fit lining consistent across every ring in the TUNGRA collection. The comfort-fit profile means the inside of the band is slightly domed rather than flat, which reduces skin contact and makes the ring easier to put on and take off. The black finish is a considered design detail — it gives the interior of the ring its own identity rather than leaving it as an unfinished afterthought.
Argentis in silver is the most versatile — it pairs with virtually any watch, clothing, or other ring regardless of metal choice. Aurion in 18K gold is the closest equivalent for those who want a warmer tone. Titanis in gunmetal and Obsidis in black both have a stronger aesthetic character that suits a specific style. Roseon in rose gold has become one of the most popular choices in men's jewellery and pairs particularly well with mixed-metal or minimal styling.
8mm is a popular width for men's rings — substantial enough to sit with presence on the hand, but not so wide as to feel uncomfortable in daily wear. It suits most hand sizes well. If you have a particularly narrow finger or prefer a more understated look, it's worth considering whether a narrower option might suit you better. The comfort-fit interior helps with wearability regardless of width.
All Foundoria tungsten rings are independently tested to REACH and GPSR standards, with nickel content within the limits considered safe for the vast majority of people. If you have a known severe nickel allergy, it is worth seeking specific guidance before purchasing any metal jewellery. The polished black interior sleeve also reduces direct skin contact with the tungsten itself.