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.

His band is tungsten carbide — about 4× harder than titanium and second only to diamond in scratch resistance. Her ring is solid 925 sterling silver, hand-finished and hypoallergenic. Both are backed by our lifetime warranty.
“I needed something that's durable and I don't have to worry about it getting scratched up.”
Free size exchanges on both rings — we send a brand-new ring in the right size, with a prepaid return label for the old one.
“I had to exchange it twice due to sizing issues (my fault) and was met with amazing customer service.”
A date. A name. An inside joke no one else will get. Free engraving — a $30 value — inside both bands. Shipped together in a gift-ready ring box.
“Rings look so beautiful. Engraving of my wedding song is perfect.”

Foreverings started in 2017 when our founder left aerospace engineering to make rings the way he made flight hardware — material selection, tolerances, and final finish held to the same standard.
Years later we're still a family business based in Florida. Every ring is inspected by hand before it ships, and every one is engraved free.
►This unique Black Onyx ring set is an excellent choice for couples, featuring a kite-shaped onyx centerpiece for her in 925 silver, paired with a sleek silver tungsten band with a crushed black onyx inlay for him. Whether chosen as a wedding ring, a promise ring, or a heartfelt anniversary gift, this set offers the option of engraving for a personalized touch, making it truly one-of-a-kind.
►Sold as a three-piece set
►His ring is Tungsten Carbide with Crushed Black Onyx Inlay
►Her ring is 925 solid Sterling Silver
►Her ring has a kite shaped, Black Onyx center stone accented with simulated diamonds (CZ)
►Her Band Width: 1.7mm
►His Band Width: 8mm
►Fit is true to size
►A stunning option for a wedding ring set, engagement ring set, or promise ring set, this exquisite duo also makes for a perfect anniversary gift. These matching wedding rings are a symbol of unity and love for couples seeking a unique and memorable choice.
✓ 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.
| Metals | Tungsten, Sterling Silver |
|---|---|
| Stone | Onyx |
| Inlay | Black Onyx |
| Colors | Silver |
| Band widths | 8mm · 1.7mm |
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 rings reaching us.
Engraved sets 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.
Both rings — his and hers, each in the size you choose. One purchase covers both of you, shipped together in a gift-ready ring box with free US shipping.
His band is tungsten carbide — about 4× harder than titanium, polish-holding, and hypoallergenic. Her ring is solid 925 sterling silver, hand-finished and hypoallergenic. Both are backed by our lifetime warranty, and the fit on both is protected by free size exchanges.
We do something even better — free size exchanges, on both rings. Instead of cutting and stretching a ring the way traditional resizing does, we simply send a brand-new ring in the right size. If either size is wrong, we make it right, free.
Add names, dates, or coordinates to either band — or both — engraved before your set ships, free (a $30 value). Engraving is custom-made just for you, so engraved sets are final sale, and it adds about three business days.
Black Onyx — hand-set and sealed under a protective coating that defends it from water, dirt, and grime. Because the stones settle differently in every channel, no two rings are ever alike.
Most of our designs are also sold individually — the set is simply the best value. If you only need one ring, message us and we'll point you to the matching individual listings.