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Cobalt Flat Polished 5mm Band

SKU: BCX-RCO-LSLU-7
Sale price  $82.03 Regular price  $157.00

You save $74.97 47% off

  • Cobalt
  • 5.0 mm band

Only 1 left · Ships within 2–3 business days

Ring Size: 7
Product subtotal: $82.03
  • Free shipping over $99
  • 30-day returns & size exchanges
  • Secure checkout

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The details

Polished to a mirror-bright finish and shaped to a clean, flat profile, this cobalt band brings a modern clarity to one of jewelry's most enduring forms. Cobalt's naturally white tone holds without plating, and its exceptional hardness means the surface stays smooth through years of daily contact.

The flat edges and even width give the band a precise, architectural quality that suits a wide range of personal styles. It wears confidently on its own and pairs cleanly with virtually any engagement ring, making it as practical as it is considered.

Key Features

  • Crafted in cobalt with a polished finish
  • Measures 5 mm wide
  • Approximate weight of 5.65 grams

Why You’ll Love It

  • A mirror-bright polish that holds its look through everyday wear.
  • Clean, flat lines that pair with any engagement ring effortlessly.
  • Engravable inside for a date, initials, or a personal message.
  • A hardness that outlasts softer metals season after season.

Perfect For

This band suits anyone marking a commitment, from a wedding day to a milestone anniversary, and it wears just as naturally every day after. It makes a thoughtful gift for a partner, a spouse, or anyone who appreciates understated, durable design. Unisex proportions mean it fits a wide range of recipients warmly.

Size & fit
  • Available in ring sizes 7 to 13.
  • Band width: 5.0 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.

Shipping & delivery · Returns & exchanges

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 full jewelry care guide

Cobalt Flat Polished 5mm Band
Regular price $82.03 USD
Regular price $157.00 USD Sale price $82.03 USD
Ring Size: 7
Cobalt Flat Polished 5mm Band - Birthstone Company
Cobalt Flat Polished 5mm Band
Sale price  $82.03 Regular price  $157.00
Specifications

The details

Metal
Cobalt, polished
Band width
5.0 mm
Sizes
7, 7.5, 8, 9, 9.5, 10.5, 11, 11.5, 12, 13
Weight
5.65 g
Show all specifications
Made in
China
Item number
BCX-RCO-LSLU-7

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