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The Castaway | Koa Wood Tungsten Ring with Shell Inlay, Dome Fit, 8mm
  • The Castaway | Koa Wood Tungsten Ring with Shell Inlay, Dome Fit, 8mm
  • The Castaway | Koa Wood Tungsten Ring with Shell Inlay, Dome Fit, 8mm
The Castaway | Koa Wood Tungsten Ring with Shell Inlay, Dome Fit, 8mm
$195.00
Size

Find your size

Tungsten cannot be resized, so it is worth getting this right the first time. Two ways to check at home.

Measure a ring you already own

Lay a ring that fits flat and measure straight across the inside, edge to edge. Match that measurement to the inside diameter below. This is the most reliable method at home.

Measure your finger

Wrap a strip of paper or a piece of string around the base of your finger, mark where it meets, then measure the length in millimetres. That is your circumference. Measure at the end of the day, when fingers are at their largest.

These bands are comfort fit, which means the inside is domed and slides on more easily than a flat band. If you are between sizes, take the smaller one.

US size Inside diameter Circumference
6 16.5 mm 51.9 mm
6.5 16.9 mm 53.1 mm
7 17.3 mm 54.4 mm
7.5 17.7 mm 55.7 mm
8 18.1 mm 57.0 mm
8.5 18.5 mm 58.3 mm
9 19.0 mm 59.5 mm
9.5 19.4 mm 60.8 mm
10 19.8 mm 62.1 mm
10.5 20.2 mm 63.4 mm
11 20.6 mm 64.6 mm
11.5 21.0 mm 65.9 mm
12 21.4 mm 67.2 mm
12.5 21.8 mm 68.5 mm
13 22.2 mm 69.7 mm
13.5 22.6 mm 71.0 mm
14 23.0 mm 72.3 mm

If the size is not right, contact us within 30 days and we will exchange it for the same style in a new size.

Solid wood, hinged, cut to hold the band upright. We pack your ring inside it.

Ships in 1 to 3 business daysFree U.S. shipping, with tracking

The Castaway runs Koa and shell side by side through a tungsten band.

Every piece is cut individually, so the grain varies gently from one band to the next.

The shell shifts gently as the light moves across it.

8mm wide, domed, comfort fit, so it settles comfortably and stays that way. Tungsten keeps its polish and wears well over the years.

Lifetime warranty and free U.S. shipping. Tungsten cannot be resized, so we exchange sizes whenever you need a different fit.

Specifications

Width
8mm
Profile
Dome
Fit
Comfort fit
Materials
Tungsten carbide, Koa wood inlay, shell inlay

Tungsten holds its finish and resists scratching. The Koa is sealed, so everyday water is fine. Take it off for long soaks and harsh chemicals to keep the grain looking its best.

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Do you offer free exchanges?

Yes. If the size is not right we will swap it — one free size exchange per order on unworn rings, within 30 days.

Not sure of your size?

Start with the size guide above, or we will post you a free ring sizer. If the first one misses, the exchange is on us.

Is it covered if something happens?

Yes. Every ring carries a lifetime warranty: one replacement per original purchase for damage, loss, or theft.

Can I wear it every day?

Yes, that is what it is built for. Tungsten keeps its polish and shrugs off the small scratches that dull softer bands.

Can it get wet?

Yes. Everyday water is fine, washing hands included. Take it off for long soaks and keep harsh chemicals off the inlay.

Is every ring a little different?

Yes. The Koa is cut piece by piece, so the grain varies gently from one band to the next.

Can I get it engraved?

Yes. Add an inside engraving for $15 — up to 20 characters, so initials, a date or coordinates all fit.

Will it turn my finger green?

No. Tungsten does not tarnish the way plated metals do, so it will not mark your skin.

Is shipping free?

Yes, on every U.S. order. Most leave within 1 to 3 business days and arrive about 3 to 7 days later.

Can I return it?

Yes. Unworn pieces can be returned within 30 days for a refund.

Will I be able to track it?

Yes. Every order ships tracked, and the link lands in your inbox as soon as it leaves us.

Do you offer a military discount?

Yes. 15% off for current and former U.S. military, their spouses and dependents, and first responders including law enforcement, fire and EMS. Verify once with GovX on our military discount page and shop with your code.

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