Delivery

We will deliver most products (jewellery and watches) to you as soon as reasonably possible and in any event within 7 days after the day on which we accept your order. Selected items may be subject to an additional lead time with our suppliers. Where this is the case, the applicable product page will have the dispatch time noted.

DPD (UK)

Selected high value orders will be delivered by DPD (UK) and may be subject to additional security checks. As a result this may delay the dispatch of your order and we thank you in advance for your patience should this happen. Delivery made by DPD (UK) will require confirmation of an earlier DPD provided PIN and must be accepted over the threshold at the delivery address, within the advised time slot and cannot under any circumstances be delivered to an alternative destination such as with a neighbour or in a safe place.

Royal Mail

Typically, we will send goods to you using the first class service or special delivery service with Royal Mail.

Click & Collect

You can choose to collect products from any of our stores throughout the UK.

Returns

If you wish to return goods you have a duty to keep them in your possession and to take reasonable care of them until you return them. Goods must be returned in their original condition, including immediate packaging with the delivery note, within the cooling off period.

For our full Delivery & Returns policies please click here.

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O

O Size Rings

Browse our collection of O size rings here at Ramsdens Jewellery. You can make sure you're looking at the right range for you by using our printable ring size guide. And, if you're between sizes, you might be interested in our N size or P size rings.

Filters

Min:

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Max:

20% OFF

Ramsdens18ct Yellow Gold 0.20ct Diamond And Pink Sapphire Cluster Ring

Was: £449.00

Now: £359.00

Save £90.00 (20%)

Ramsdens9ct Yellow Gold Wave Wedding Band

£149.00

Ramsdens18ct Yellow Gold 1.00ct Baguette And Brilliant Cut Diamond Cluster Ring

£1,499.00

From £18.13 / monthFinance options available

Ramsdens18ct White Gold 1.01ct Diamond Solitaire Ring

£5,199.00

From £61.63 / monthFinance options available

Ramsdens18ct Yellow Gold 0.05ct Diamond And Ruby Ring

£359.00

Ramsdens18ct Yellow Gold 0.30ct Diamond And Sapphire Three Stone Ring

£419.00

Ramsdens18ct Yellow Gold 0.05ct Diamond And Ruby Two Row Ring

£429.00

Ramsdens18ct Yellow And White Gold 0.05ct Diamond And Sapphire Cluster Ring

£319.00

Ramsdens18ct Yellow Gold 0.04ct Brilliant Cut Diamond Crossover Ring

£419.00

Ramsdens18ct Yellow Gold 0.50ct Diamond Cluster Ring

£599.00

Ramsdens18ct Yellow Gold 0.50ct Brilliant Cut Diamond Half Eternity Ring

£499.00

Ramsdens18ct Yellow Gold 0.60ct Brilliant Cut Diamond Solitaire Ring

£999.00

From £18.00 / monthFinance options available

RamsdensLab Grown 9ct Yellow Gold 2.07ct Pear Cut Diamond And Created Sapphire Ring

£1,499.00

From £18.13 / monthFinance options available

RamsdensLab Grown 9ct Yellow Gold 2.07ct Pear Cut Diamond And Created Ruby Ring

£1,499.00

From £18.13 / monthFinance options available

RamsdensLab Grown 9ct Yellow Gold 1.90ct Oval And Pear Cut Diamond Trilogy Ring

£1,399.00

From £17.91 / monthFinance options available

Ramsdens9ct Yellow Gold 0.50ct Brilliant And Baguette Cut Diamond Cluster Ring

£449.00

Ramsdens14ct Yellow Gold Tanzanite Single Stone Ring

£329.00

Ramsdens9ct Yellow Gold Cubic Zirconia Cluster Ring

£119.00

Ramsdens9ct Yellow And White Gold 0.25ct Brilliant Cut Diamond Crossover Ring

£289.00

Ramsdens9ct Yellow And White Gold 0.45ct Brilliant Cut Diamond Half Eternity Ring

£529.00

Ramsdens18ct White Gold 2.00ct Brilliant, Princess And Baguette Cut Diamond Cluster Ring

£2,499.00

From £29.63 / monthFinance options available

20% OFF

Ramsdens9ct White Gold 0.40ct Brilliant Cut Diamond Cluster Ring

Was: £479.00

Now: £385.00

Save £94.00 (20%)

Ramsdens9ct White Gold 0.33ct Brilliant Cut Diamond Cluster Ring

£429.00

Ramsdens9ct Yellow Gold Garnet Single Stone Ring

£179.00

A UK ring size O has a circumference of 55.1mm, which means it's the equivalent to a US 7 and an EU 54 ⅝. It's a relatively common ring size, which means we typically have an extensive range of styles in this size. However, some of them are one-offs, so it's best to make a quick decision if there's a piece you love!

Because there are so many men's and women's rings in a size O to choose from, you should have no trouble finding a beautiful accessory to suit your needs. Whether you're planning to propose to your beloved and are shopping for an engagement ring in a size O, or you're looking to treat yourself to a size O diamond or gold ring, we'll have just the thing to fit the bill.

These aren't the only rings we stock, either. So, if you would like more options, make sure you check out our entire collection of luxury rings, as we often have pieces that can be resized to fit you perfectly.

Found a men's or women's ring in a size O that you love? Shop online today with free UK delivery. We also offer a 14-day returns period to give you complete peace of mind.