Cobalt Flat Polished 7mm Band
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- Cobalt
- 7.0 mm band
Only 2 left · Ships within 2–3 business days
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- 30-day returns & size exchanges
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The details
Polished to a mirror-bright finish, this flat cobalt band earns its presence through material alone. Cobalt is naturally white, so the color running through the band is the metal itself - no plating, no coating, nothing applied over a different base. The result is a clean, reflective surface that holds its look through daily wear without special care.
The flat profile and flat edges give the design a precise, modern character that suits a wide range of personal styles. Wide enough to make a statement and refined enough to pair with almost anything, it works as a wedding band, an anniversary upgrade, or simply a ring worn because it looks and feels exactly right.
Key Features
- Crafted in cobalt with a polished finish
- Measures 7 mm wide
- Approximate weight of 7.63 grams
Why You’ll Love It
- A naturally white metal that needs no plating to stay bright.
- The flat profile pairs cleanly with almost any engagement ring.
- Engrave it with a date or initials to make it entirely yours.
- Cobalt's hardness means it holds up to years of daily wear.
Perfect For
This band suits anyone who wants a modern, low-maintenance ring built to last. It works beautifully as a wedding or commitment band for men or women, and its engravable surface makes it a thoughtful gift for anniversaries, milestone birthdays, graduations, or any occasion that calls for something personal and enduring.
Size & fit
- Available in ring sizes 7 to 13.
- Band width: 7.0 mm.
- Between sizes? Wider bands fit snugger, so go up a half size for bands over 6 mm.
- Not sure of the size? Our ring size guide walks you through measuring at home.
- The wrong size? Exchange it for another size within 30 days of delivery.
Shipping & returns
- Free standard shipping on U.S. orders of $99 and above; under $99 the rate is shown at checkout.
- Orders ship within 2 to 3 business days in insured packaging, with tracking sent by email.
- Faster delivery: USPS Priority Mail and UPS options at checkout, where rates and delivery estimates are shown before you pay.
- Not the right piece, or the wrong size? Return it, or exchange it for another size, within 30 days of delivery. Items must be unworn and in their original condition and packaging.
- Covered by our One-Year Limited Jewelry Warranty against manufacturing defects.
Jewelry care
- Put jewelry on last, after lotion and perfume, and take it off before showering, swimming or sleeping.
- Store each piece on its own in a soft pouch so it doesn't scratch.

The details
- Metal
- Cobalt, polished
- Band width
- 7.0 mm
- Sizes
- 7, 7.5, 8, 8.5, 9, 9.5, 10, 10.5, 11, 11.5, 12, 12.5, 13
- Weight
- 7.63 g
Show all specifications
- Made in
- China
- Item number
- BCX-RCO-NNBX-7