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

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Max:

Ramsdens18ct Yellow and White Gold 0.15ct Brilliant Cut Diamond Solitair Twist Ring

£479.00

Ramsdens18ct White Gold 0.90ct Brilliant Cut Diamond Three Row Fancy Ring

£849.00

From £17.92 / monthFinance options available

Ramsdens18ct Yellow Gold 0.50ct Brilliant Cut Diamond Solitaire Ring

£779.00

Ramsdens18ct White Gold 0.50ct Brilliant Cut Diamond Solitaire Ring

£699.00

Ramsdens9ct Yello Gold Masonic Circular Signet Ring

£379.00

Ramsdens9ct Yellow Gold Tanzanite Three Row Ring

£279.00

Ramsdens18ct Yellow Gold Red And Blue Gemstone, And Cubic Zirconia Fancy Ring

£689.00

Ramsdens9ct Yellow Gold Hematite Centurian Oval Signet Ring

£479.00

Ramsdens18ct Yellow Gold 0.10ct Diamond And Garnet Ring

£319.00

Ramsdens9ct Yellow Gold 0.01ct Diamond And Sapphire Trilogy Ring

£149.00

Ramsdens9ct White Gold Pink Topaz And Cubic Zirconia Crossover Ring

£149.00

Ramsdens9ct Yellow Gold 0.15ct Diamond and Ruby Three Row Ring

£229.00

Ramsdens18ct White Gold 0.50ct Brilliant Cut Diamond Solitaire Ring

£999.00

From £18.00 / monthFinance options available

Ramsdens18ct Yellow Gold 0.50ct Brilliant Cut Diamond Half Eternity Ring

£529.00

RamsdensPalladium 0.50ct Brilliant Cut Diamond Solitaire Ring

£679.00

20% OFF

Ramsdens18ct Yellow Gold 1.75ct Princess Cut Diamond Trilogy Ring

Was: £2,499.00

Now: £1,999.00

Save £500.00 (20%)

From £23.70 / monthFinance options available

Ramsdens9ct Yellow Gold 1.00ct Brilliant Cut Diamond Cluster Ring

£999.00

From £18.00 / monthFinance options available

Ramsdens18ct White Gold 1.00ct Brilliant Cut Diamond Solitaire Ring

£1,299.00

From £17.86 / monthFinance options available

Ramsdens14ct Yellow Gold Monaco Cavo Plain Black Pave Link Ring

£319.00

Ramsdens14ct Yellow Gold Patterned Signet Ring

£329.00

Ramsdens9ct Yellow Gold 0.30ct Brilliant Cut Diamond Half Eternity Ring

£399.00

Ramsdens9ct Yellow Gold 0.25ct Brilliant Cut Diamond Trilogy Ring

£369.00

Ramsdens9ct Yellow Gold 0.25ct Brilliant Cut Diamond Five Stone Ring

£289.00

20% OFF

Ramsdens18ct Yellow Gold 0.33ct Brilliant Cut Diamond Trilogy Ring

Was: £579.00

Now: £465.00

Save £114.00 (20%)

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.