Measure the inside edge-to-edge of a ring you already own for the most accurate result. For wider bands (8mm+), sizing up is usually the safer choice.
Ring Sizing FAQ
We recommend sizing up. A ring that's slightly loose is more comfortable than one that's too tight, especially for wider tungsten bands.
Yes — fingers can swell slightly in heat and shrink in cold. Measure at room temperature, ideally in the evening when fingers tend to be at their largest.
Yes — wider bands (8mm and up) tend to fit more snugly than narrower ones at the same listed size. If you're between sizes and ordering a wide band, size up.
Yes — your first size exchange is free within 30 days of delivery. You cover the cost of shipping your ring back to us, and we cover the cost of shipping your correct size back to you. See our Free Size Exchange Policy for full details.
Quantity
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A tungsten carbide ring featuring a purple carbon fiber inlay, set beneath a domed profile, available in 6mm and 8mm widths. The woven purple carbon fiber gives the band a distinctive, colorful detail suited to a promise ring or anniversary gift, standing apart from more traditional black or grey carbon fiber options.
A Bold Color, Woven Into a Ring Built to Last
The carbon fiber inlay is genuine, set into a channel cut directly into the tungsten carbide rather than printed or laminated onto the surface, so its woven texture and purple tone hold up under normal daily wear. The domed profile keeps the silhouette classic despite the bolder color at its center.
Specs:
Width: 6mm or 8mm
Material: Tungsten carbide
Inlay: Purple carbon fiber
Profile: Domed
Style: Unisex
Warranty: Lifetime Limited
Resizing: Not resizable — free first size exchange included
FAQ:
Is the purple carbon fiber inlay genuine? Yes — it's genuine woven carbon fiber, set into a channel cut into the tungsten carbide rather than a printed or laminated imitation.
Is this a good choice for an anniversary or promise ring? Yes — its distinctive purple color and durability make it a meaningful, low-maintenance choice for marking a promise or anniversary.
Which width should I choose? 6mm suits a more understated look, while 8mm gives a bolder presence — both share the same domed design and purple inlay.
Can this ring be resized if it doesn't fit? Tungsten carbide can't be resized after manufacturing, but the first size exchange is free — check our Size Guide before ordering to get an accurate fit.
No vague "premium materials" claims. Here's exactly what makes up every TungstenNation ring, layer by layer.
1
Tungsten Carbide Core
The structural body of the ring. This is where the hardness comes from — rated 8.5–9 on the Mohs scale, which is why it resists scratches that dull softer metals over time.
2
The Binder
Pure tungsten is too brittle for jewelry, so it's fused with a binder metal to hold the structure together. We disclose which binder is used in every listing — nickel or cobalt — instead of leaving it out.
3
Surface Finish
Color and texture (brushed, polished, matte) are set into the surface during manufacturing, not sprayed or plated on top — so it doesn't chip or fade with daily wear.
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