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Blue Groove Tungsten Ring
UK S
£79.99
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![Atlas blue groove ring in black tungsten carbide in black tungsten carbide [c:black]](//www.atlasmens.com/cdn/shop/files/atlas-blue-groove-ring-black-tungsten-black.jpg?v=1791974865&width=3840)
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![Atlas ring sizes 52 to 67 with inner diameters and the 8 mm band width [u:mm]](http://www.atlasmens.com/cdn/shop/files/atlas-blue-groove-ring-black-tungsten-sizes-mm.jpg?v=1791974859&width=3840)
For the man who never gives up on his people.
Blue Groove Tungsten Ring
Tungsten carbide · Brushed black band
£79.99
Buy 2 products, get the 3rd free
Valid on all our jewelry
US 9 = UK S
Atlas fit
Find your ring size
Two minutes with a strip of paper or a soft tape and you will order the right size first time.
Shown in centimetres (inches) and UK sizesMeasure at home in 2 minutes
You need a strip of paper (or a string or shoelace), a pen and a ruler.
With a ring that fits (most accurate)
- Lay a ring you wear on that finger on the ruler and measure the inside diameter, edge to edge, in millimetres.
- Find that diameter in the table below.
With a strip of paper
- Wrap the strip around the base of your finger: it must still slide over the knuckle.
- Mark where it overlaps, lay it flat and measure it in millimetres: that is the circumference. Find it in the table below.
Measure at the end of the day, when fingers are slightly larger.
No ruler? A bank card is 8.6 cm (3.4") long: count how many fit along your strip.
| UK | US | EU | Diameter | Circumf. |
|---|---|---|---|---|
| J½ | 5 | 49 | 15.7 mm (0.62") | 49.3 mm (1.94") |
| L½ | 6 | 52 | 16.5 mm (0.65") | 51.9 mm (2.04") |
| O | 7 | 54 | 17.3 mm (0.68") | 54.4 mm (2.14") |
| Q | 8 | 57 | 18.1 mm (0.71") | 57.0 mm (2.24") |
| S | 9 | 59 | 19.0 mm (0.75") | 59.5 mm (2.34") |
| U | 10 | 62 | 19.8 mm (0.78") | 62.1 mm (2.44") |
| W | 11 | 65 | 20.6 mm (0.81") | 64.6 mm (2.54") |
| Y | 12 | 67 | 21.4 mm (0.84") | 67.2 mm (2.65") |
| Z+1 | 13 | 70 | 22.2 mm (0.87") | 69.7 mm (2.74") |
| Z+3 | 14 | 72 | 23.0 mm (0.91") | 72.3 mm (2.85") |
| Z+4 | 15 | 75 | 23.8 mm (0.94") | 74.8 mm (2.94") |
| Z+6 | 16 | 77 | 24.6 mm (0.97") | 77.3 mm (3.04") |
Half sizes sit halfway between two rows (about 0.4 mm of diameter).
Good to know: measure at the end of the day, when fingers are slightly larger. Wide bands (8 mm and more) feel tighter: if you are between two sizes, take the larger one. Tungsten carbide cannot be resized, so it is worth measuring twice.
Still unsure? Message us with your measurement and we will tell you which size to order.
Or 3 interest-free payments of £26.66 with Klarnasubject to eligibility
- Waterproof
- Won't turn skin green
- Order processed within 24 hours
- 1-year warranty
- Free shipping over £59
- 30-day returns
Black on the outside, a thin blue line, and more blue only you see.
Atlas did not choose the weight; he chose to hold it. The ring you choose to wear every day should be up to the same job. This wide 8mm tungsten carbide band is brushed black with beveled edges, with a thin blue groove running through the center and the same blue on the inside, where only you see it. Quiet black first, color second. US sizes 6, 8, 9, 11 and 12.
- Fine in the shower, the gym and the sea
- Blue groove plus a blue interior
- Brushed black, 8mm wide
Details & specs
MaterialTungsten carbide
Ring styleGrooved band
FinishBrushed black, blue groove and interior (plated)
Width8mm
Ring sizesUS 6, 8, 9, 11, 12
Thickness2.5mm (0.10 in)
The band is tungsten carbide, one of the hardest materials used in men's rings, which is why it holds its finish far better than softer metals, and it does not rust. The outer surface is brushed black with beveled edges, so light rolls off the sides instead of flashing. The black and the blue are plated finishes, and we say so.
A single blue groove runs around the center of the band. Inside, the ring carries the same blue with a TUNGSTEN CARBIDE marking. At 8mm wide it sits broad across the finger, and the smooth inner surface keeps it comfortable through a long day of work, driving and everything in between.
How to wear it
Wear it alone on the ring finger as a wedding or commitment band, or on the index finger with a black or steel watch for a matched look. The brushed black suits denim, a white tee and dark outerwear, and it stays understated under a shirt cuff at work. Keep other rings minimal so the blue line stays the detail people notice.
Choosing your size
Offered in US sizes 6, 8, 9, 11 and 12. This is an 8mm band, so it covers more of the finger than a thin ring; if you are between sizes or your knuckle is larger than the base of the finger, take the larger size. Tungsten carbide cannot be resized, so measure an existing ring of similar width before ordering.
Why this piece
Built for everyday hands
Tungsten carbide is very hard and highly scratch-resistant, so the brushed black keeps its look through daily wear.
Two-tone without noise
Black brushed metal, one blue line and a blue interior. The contrast is there when you look for it.
For the man who carries everything
A wedding, birthday or anniversary gift for the partner who holds steady when things get busy. Borrow a ring he wears; if he falls between two of the sizes offered, take the larger one. You have 30 days to return it.
Shipping & delivery
Free tracked shipping over £59
Below that, a flat tracked rate is shown at checkout.
- 1Order confirmedYou get an email straight away.Today
- 2Order processedEach piece packed on its own, tracking link by email.Within 24 hours
- 3At your doorDelivery times vary by country.
Returns
30 days to return
Any unworn piece in its original packaging, refunded in full to your original payment method. Return shipping is at your expense, except for a defective or wrong item.
Wrong size
Changed your mind
Not what you expected
- 1Contact usSend us a message with your order number.Within 30 days
- 2Send it backWe reply with the return steps.
- 3RefundedIn full, once the piece is back with us.
Wrong size? Order the size you need and return the other one within 30 days.
Warranty & care
1-year warranty
Against manufacturing defects. See how the warranty works.
Put it on lastAfter perfume and lotion.
Made for everyday wearSteel and tungsten won't rust in the shower, gym, pool or sea. Keep leather pieces dry.
Store pieces apartSo they do not scratch each other.
Soft, dry clothA quick wipe keeps the finish bright.
Tungsten cannot be resizedCheck your size in the size guide before ordering.
Questions
Can the blue groove ring stay on in the sea and at the gym?
Yes, tungsten carbide does not rust, so salt water and sweat are fine. Dry it with a soft cloth to restore the brushed black look.
Can the black and blue groove ring be a wedding band?
Yes. Worn alone on the ring finger it works as a wedding or commitment band, and it stays understated under a shirt cuff at work.
How do I size the 8mm blue groove ring?
Measure an existing ring of similar width on the same finger, and take the larger size if you are between two. Tungsten carbide cannot be resized.
Is there a size 7 or 10?
No. This ring comes in US 6, 8, 9, 11 and 12 only. If you wear a 10, take 11: an 8mm band sits close on the finger, so the larger size passes the knuckle more easily.
What is written inside the ring?
A TUNGSTEN CARBIDE marking, on a blue interior that matches the groove. It sits on the inside, so only you see it.
How much blue shows when I wear it?
Only a thin line. The groove runs around the center of the brushed black band; the rest of the blue is on the inside, against your finger.
Is tungsten heavier than titanium?
Yes, much heavier. Tungsten carbide is roughly three times as dense as titanium, so this 8mm band feels solid on the hand where a titanium ring feels almost weightless.
Does brushed black show fingerprints?
Less than a mirror finish. The brushed black is matte and low-glare, so fingerprints and fine marks show less than on a polished ring.
