Flat Wedding Band in Cobalt, 8mm, Size 7–12
*This ring cannot be resized
Product information
- MetalWhite cobaltPolished
- Size8 mmBand width
- Weight9.07 gTotal item weight
Description
A bright white polished surface runs across this flat cobalt wedding band, a minimalist ring with a clean and understated look. The metal is cobalt, finished with a high polish that gives it a smooth, reflective shine. The profile is flat and even, with a standard fit, so it sits flush against the finger and keeps its shape from edge to edge. You can wear it on its own with a crisp white shirt, or beside an engagement ring for a quiet contrast in metals. It is a fitting pick for a couple marking a wedding or an anniversary. Easy to engrave.
Key Features
- Crafted in cobalt with a polished finish
- Measures 8 mm wide
- Available in ring sizes 7 to 12, including half sizes
- Approximate weight of 9.07 grams
Why You’ll Love It
- A clean, flat shape that stays understated with any outfit.
- The polished shine catches light without looking fussy.
- Engravable, so you can add words that matter to you.
- Easy to wear from morning through evening.
Perfect For
Ideal for weddings and anniversaries, and as an everyday ring for anyone who likes a minimalist look. A thoughtful gift for a partner, a groom or a bride, with room for a personal engraving.
Product detailsWhite cobalt · 9.07 g
Metal
- Metal
- White cobalt
- Finish
- Polished
Measurements
- Band width
- 8 mm
- Weight
- 9.07 g
- Thickness
- 2.0 mm
Style & design
- Ring type
- Wedding Bands
- Ring style
- Wedding Band
- Ring shape
- Flat
- Fit
- Standard
- Style
- Minimalist
- Engravable
- Yes
More
- Brand
- Chisel
- Made in
- China
- Item #
- SJQG-CC23-7
Size & fitSize guide and printable chart · 30-day size exchanges
Choose your size above.
Not sure of your size? Use our ring size guide or the printable ring size chart.
If it doesn’t fit, you can exchange it for another size or another piece within 30 days of delivery. We don’t resize rings.

Shipping & returnsFree insured shipping over $99 · 30-day returns
Free, insured shipping on US orders of $99 or more.
Return it within 30 days of delivery, unworn and in its original packaging.
Exchange it within 30 days for another size or another piece.
Covered by our One-Year Limited Jewelry Warranty against manufacturing defects.
What’s in the boxYour ring in our signature blue padded gift box
- Your ring
- Our signature blue padded jewelry gift box
- A packing slip with no prices on it
Jewelry careStore each piece on its own in a soft pouch
Store each piece on its own in a soft pouch or lined box, so nothing scratches it.

Recently viewed products
What Our Customers Are Saying
Real reviews from Sophia Jewelers customers, collected by Judge.me.
Cobalt Wedding Bands, answered
Straight answers about cobalt wedding bands. See all Cobalt Wedding Bands
- Free Shipping
- US Orders $99+
- Exchanges
- 30 Days, Including Ring Size
How do I choose between brushed, polished and hammered cobalt bands?
Pick the finish by how much shine you want. Brushed bands look soft and matte, polished ones are mirror bright, and hammered bands have a dimpled texture. Many bands here combine brushed and polished areas, which gives contrast and a two-tone look without adding another metal.
What width of cobalt wedding band should I choose?
Widths here run from 4mm to 8mm. Slimmer bands of 4mm to 6mm look understated, while 7mm and 8mm bands feel bolder and show off details like grooves or inlays. Check the ring size chart, since wider bands can fit snugly.
What affects the price of cobalt wedding bands?
Width, finish and added details drive the price. Diamond or cubic zirconia accents, 14K gold accents, sterling silver or carbon fiber inlays, and IP plating in black or yellow all change the cost. Use the Price filter on this page to set a budget.
Which cobalt wedding band styles are most popular?
Beveled-edge and flat bands lead the list. Hammered, grooved domed, ridged and half-round styles follow close behind. Most are plain cobalt in brushed and polished finishes, with diamond-accent and gold-accent bands also appearing near the top.