Ocean-blue aquamarine in rugged hammered black tungsten.
Lay a ring you own over the circles. The matching circle is your size.
Cut out the strip, wrap it around your finger, thread the end through the slit, and read your size.
| US | Diameter | Circumf. | UK/AU/IE | EU |
|---|
UK, Australia & Ireland share the letter system. European sizes are approximate conversions.

Founded by a former aerospace engineer, Foreverings was built on a simple belief: every piece should be made with the same precision standards used in high-performance engineering, from material selection to final finish.
This isn't just jewelry. It's a ring built to last through real life, not just look good in photos. Family-run, based in Florida, engraved free.
►This striking 8mm black hammered tungsten ring features an aquamarine inlay, blending rugged style with a touch of sophistication. Perfect for anyone seeking a unique promise ring or distinctive wedding ring, it symbolizes a commitment as enduring as the band itself. Designed to stand out, it captures the essence of modern elegance and lasting love. A custom engraving option is available to add a personal touch to this beautiful ring.
►Material: Tungsten Carbide and Aquamarine Glass Stones
►Color: Black
►Comfort Fit
►Band width: 8mm
►Fit is slightly loose, but should order as true to size. If you are between sizes, recommend going down to the next closest size.
►Aquamarine symbolizes calming energy, fostering tranquility and peace in the relationship. Linked to improved communication, the gemstone encourages openness and honesty between partners.
►Having an incredible resistance to scratching, your tungsten band is 4 times harder than titanium, 5 times harder than steel, and 10 times harder than gold. Its hardness is second only to diamonds. Tungsten will maintain its luster, beauty, and shape forever. Its eternal strength is the perfect symbol of eternal love.
✓ 100% Cobalt-Free
✓ Hypoallergenic
✓ Comfort Fit
✓ Free Ring Box
✓ Free Shipping within the US
✓ Ready to ship next business day
►Your tungsten ring will not turn green itself and will not cause your skin to turn green.
►Free USA domestic shipping.
►Delivery Time: 2-5 business days
►Packaged in a gift ready ring box.
►We recommend that you confirm appropriate sizing for rings. Please contact us if you need help sizing.
| Metal | Tungsten |
|---|---|
| Center stone | Aquamarine |
| Inlay | Aquamarine Glass Stones |
| Color | Black |
| Widths | 8mm |
Free US shipping on every order — and if you need it fast, 2-day and overnight options are right at checkout.
Wrong size? No stress. Just reach out and we'll get your exchange or return moving. We'll send you a prepaid return label to make it easy, and we turn things around within about 3 business days of your ring reaching us.
Engraved rings are made just for you, so they can't be returned — but if the size isn't right, we'll take 40% off a replacement so you're not starting over.
A quick heads-up: international orders are final sale. Questions about anything? Check the full Returns & Exchanges policy, or just message us — we're happy to help.
It's one of the most popular men's wedding band metals for a reason: tungsten carbide is about 4× harder than titanium, holds its polish for years, and is hypoallergenic. And the fit is always protected — every ring comes with free size exchanges, so your size is guaranteed to end up right.
We do something even better — free size exchanges. Instead of cutting and stretching your ring the way traditional resizing does, we simply send you a brand-new ring in the right size. Your ring stays flawless, and the exchange is free.
Add names, dates, or coordinates — engraved inside the band before it ships, free on every ring (a $30 value). Personalizing your ring adds about three business days, and it's worth every one of them.
Crushed aquamarine glass stones — a bright ocean blue that stays vivid — hand-set into the offset channel and sealed under a protective coating that defends it from water, dirt, and grime.
Yes — every ring arrives in a gift-ready ring box with free US shipping. Add a free engraving and it becomes a keepsake: names, dates, or coordinates inside the band.