5mm Polished Comfort Fit Cobalt Ring

£65.00

✔ In stock Dispatch: 1 to 2 Working Days

Ref: CCR15 : Available in UK sizes J to Z+3

In stock Dispatch: 1 to 2 Working Days
Ref: CCR15 : Available in UK sizes J to Z+3
🕒 Order within 3 days 19h 58m and choose Special Delivery for UK delivery by Wednesday 27 May (Excludes engraving)
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5mm Polished Comfort Fit Cobalt Ring
5mm Polished Comfort Fit Cobalt Ring
£65.00
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Product Description

This 5mm polished cobalt wedding band is a slim, modern choice that suits both men and women. The bright white colour is close to white gold and the polished surface gives a clear, mirror-like finish. At 5mm wide with a 2.3mm depth, it has a neat profile that is easy to wear every day.

The band has a flat exterior and a rounded comfort fit interior. That curved inner surface helps the ring sit smoothly on the finger and makes it easier to slide on and off. The straight outer edge keeps the look crisp, so the 5mm polished cobalt wedding band works well for anyone who prefers a clean, contemporary style.

Cobalt is chosen here for appearance and practicality. It keeps a bright white tone without plating and is naturally hypoallergenic, which is helpful for sensitive skin. The polished finish enhances the colour and gives the ring a formal edge, while the slim width keeps the overall look refined.

Inside, the band is marked with our unique cobalt logo. Sizes run from J to Z+3, covering both men’s and women’s finger sizes. As with all cobalt rings, resizing is not possible, so selecting the right size when ordering is important.

If you are deciding between widths, this size sits between the very slim 3mm and 4mm rings and the broader 6mm, 7mm and 8mm styles. The 5mm polished cobalt wedding band offers more presence than the narrow options but avoids the stronger statement of the wider bands. It pairs neatly with a watch or other jewellery and suits both casual and formal wear.

The polished surface reflects light clearly, which many people prefer for a wedding band. For a softer look, you can choose the brushed version in the same width, which shares the same comfort fit interior. Either way, the 5mm polished cobalt wedding band provides a straightforward design, a bright finish and an easy fit that works day to day.

In short, the 5mm polished cobalt wedding band gives a balanced width, a clean polished profile and a comfortable interior that makes sense for regular wear.

 

Specification of 5mm Polished Comfort Fit Cobalt Ring

SKU
CCR15
Product
5mm Polished Flat Cobalt Band Ring
Item
Cobalt Ring
Guarantee
2 Year Guarantee
Made From
Cobalt Chrome
Markings
Cobalt
Ring Finish
Polished
UK Sizes
J to Z+3
Product Depth
2.3mm
Depth
2.3mm
Resizing
Cobalt rings are unable to be resized
Scratch Resistance
We do not sell any ring as scratch proof, as all rings will eventually scratch with wear. How easy or hard this happens depends on their Mohs hardness. The higher the number, the harder it is to scratch, and the more resistant it is. You can compare this 5mm Polished Comfort Fit Cobalt Ring with other rings on our Mohs hardness page. Scratches are a natural part of wear. The first mark often feels the worst, but over time the ring will develop its own patina.
We do not sell any ring as scratch proof, as all rings will eventually scratch with wear. How easy or hard this happens depends on their Mohs hardness. The higher the number, the harder it is to scratch, and the more resistant it is. You can compare this 5mm Polished Comfort Fit Cobalt Ring with other rings on our Mohs hardness page. Scratches are a natural part of wear. The first mark often feels the worst, but over time the ring will develop its own patina. You can compare the hardness of this Cobalt Ring with our other rings on our Mohs hardness page.
Density
This 5mm Polished Comfort Fit Cobalt Ring includes a density value to help you understand how heavy or light it will feel. Some people prefer a lighter ring, while others enjoy the weight of a solid metal. Density makes it easy to compare between materials. The higher the number, the heavier the ring. For example, titanium is one of the lightest at 4.5, while tantalum is around 16.6, making it nearly four times heavier.
This 5mm Polished Comfort Fit Cobalt Ring includes a density value to help you understand how heavy or light it will feel. Some people prefer a lighter ring, while others enjoy the weight of a solid metal. Density makes it easy to compare between materials. The higher the number, the heavier the ring. For example, titanium is one of the lightest at 4.5, while tantalum is around 16.6, making it nearly four times heavier. You can compare the density of this Cobalt Ring with our other rings on our Specific Gravity page.

Inside Engraving

Why not make this ring personal by adding an inside engraving? We can engrave up to 35 characters for an additional £35.00.

Need more than 35 characters? Because of ring size, font style, and certain characters, we set a safe limit. If you would like a longer message, please contact us. It may still be possible depending on the ring size and font.

You have other ideas? Contact us and we will do our best to accommodate your request.

Please note: once engraved, items cannot be returned for refund, exchange, or resizing. If you are unsure, you can order the item first and send it back later for engraving.

Engraving Inside this 5mm Cobalt Wedding Band

This 5mm polished cobalt wedding band can be engraved on the inside with a personal message, date, or initials. The polished interior gives a smooth base for engraving, and the 5mm width provides enough room for text to appear clear and well-proportioned.

Both standard and bold fonts can be used at this width. Popular choices include Times New Roman, Arial, Verdana, and Calibri, all of which give sharp and reliable results. More elaborate decorative or script fonts are not offered on this width, as finer details can reduce clarity.

Your engraving will be adjusted to suit the space available, keeping the text neat, balanced, and easy to read inside the band.

Customer Reviews and Questions

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5mm Polished Comfort Fit Cobalt Ring 5mm Polished Comfort Fit Cobalt Ring
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5.0
Based on 3 reviews
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1-3 of 3 reviews
  1. A
    Beautiful wedding bands

    Bought our wedding bands in 5 and 6 mm as we wanted them to match. Really beautiful, great shine, light, very comfortable. My partner and I are over the moon, we both love the feel and look of them and can’t wait to wear them!!

    (0) (0)
  2. H

    Perfect

    (0) (0)
  3. P
    5mm Polished Comfort Fit Cobalt Ring

    Couldn’t see the point in spending hundreds on a ring to have it re-plated every year or so. This ring is very comfy and exceptionally nice looking even if plain. I would recommend this ring and the polished surface is very smart.

    (0) (0)

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Our 30-day returns promise

We want you to be completely happy with your purchase. If for any reason you are not, you can return most unwanted items within 30 days of delivery for a full refund or exchange, no questions asked.

Christmas extended returns

Ordered as a gift? Any order placed from 1 November can be returned until 20 January, or within 30 days of delivery, whichever is the later.

How to return

Simply contact us first so we can arrange everything smoothly. Returns are sent back at your own cost and risk, so please use a tracked and insured postal service to protect yourself in transit.

Personalised & bespoke items

Items that have been engraved or made to a bespoke commission are made specifically for you and cannot be returned. If you have any doubts before ordering, please get in touch and we will be happy to advise.

Not sure of your ring size? No problem.

You are welcome to order a selection of sizes or styles to try at home, then return what does not work. We make this as easy as possible:

  • UK customers: Your first size exchange is completely free. Any further exchanges are charged at our standard Royal Mail Tracked 48 postage rate.
  • International customers: Exchanges are charged at the standard international postage rate for your destination.

How quickly will my return be processed?

We aim to process all returns and exchanges within 3 working days of receiving them back. You will receive a confirmation email as soon as it is done.