Koa Wood and Opal Tungsten Ring — The Prism
Koa Wood and Opal Tungsten Ring — The Prism
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.
Couldn't load pickup availability
An 8mm tungsten carbide wedding band combining genuine Hawaiian koa wood with opal and gold foil inlay, designed as a layered statement piece rather than a single-material band. The opal sits within the koa wood, catching light with shifting flashes of color, while the gold foil layer adds warmth beneath the surface.
A Layered Design Built Around Natural Color Play
The koa wood is genuine and sealed against daily wear, while the opal inlay is what gives the ring its shifting play of color depending on the angle and light. Because opal's color pattern and koa's grain both occur naturally, each ring shows its own individual variation rather than a uniform, repeating look.
Looking for a matching set? Browse our Tungsten Wedding Rings collection to pair widths, or explore our full Wood Tungsten Rings collection for other inlay combinations.
Specs:
- Width: 8mm
- Material: Tungsten carbide
- Inlay: Koa wood, opal, gold foil
- Style: Unisex
- Warranty: Lifetime Limited
- Resizing: Not resizable — free first size exchange included
FAQ:
Is the opal real, and will its color pattern vary between rings?
Yes — genuine opal naturally shows a unique play of color from piece to piece, so no two rings will display the exact same pattern.
What role does the gold foil play in the design?
The gold foil sits as a layer beneath the koa wood and opal, adding warmth and depth to the inlay rather than being a separate visible band.
Is this ring made to order?
Yes — this design is produced as a customized piece, so processing and shipping may take a little longer than our standard rings. Contact us at contact@tungstennation.com for a more specific timeline.
How do I care for a ring with opal and wood inlay?
Avoid prolonged exposure to water, harsh chemicals, and extreme temperature changes, which can affect both the opal and the sealed wood over time. Clean gently with a soft, dry cloth.
Share
Full Transparency
What's Actually Inside Your Ring
No vague "premium materials" claims. Here's exactly what makes up every TungstenNation ring, layer by layer.
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.
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.
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.