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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.
9ct Yellow Gold Two Row Snake Ring
Ramsdens9ct Yellow Gold Two Row Snake Ring
£469.00
18ct Yellow Gold 0.45ct Diamond Solitaire Ring
Ramsdens18ct Yellow Gold 0.45ct Diamond Solitaire Ring
£629.00
9ct Yellow Gold Pink Gemstone Cluster Ring
Ramsdens9ct Yellow Gold Pink Gemstone Cluster Ring
£229.00
18ct Yellow Gold Three Stone Cubic Zirconia Ring
Ramsdens18ct Yellow Gold Three Stone Cubic Zirconia Ring
£359.00
9ct Yellow Gold Blue Topaz And Cubic Zirconia Ring
Ramsdens9ct Yellow Gold Blue Topaz And Cubic Zirconia Ring
£329.00
14ct Yellow Gold Cubic Zirconia Cluster Ring
Ramsdens14ct Yellow Gold Cubic Zirconia Cluster Ring
£279.00
9ct White Gold Cubic Zirconia Cluster Ring
Ramsdens9ct White Gold Cubic Zirconia Cluster Ring
£359.00
18ct Yellow Gold 0.60ct Brilliant Cut Diamond Trilogy Ring
Ramsdens18ct Yellow Gold 0.60ct Brilliant Cut Diamond Trilogy Ring
£699.00
9ct Yellow Gold Ruby Cluster Ring
Ramsdens9ct Yellow Gold Ruby Cluster Ring
£229.00
18ct White Gold 0.75ct Diamond And Trilogy Ring
Ramsdens18ct White Gold 0.75ct Diamond And Trilogy Ring
9ct Yellow Gold 0.20ct Diamond And Sapphire Ring
Ramsdens9ct Yellow Gold 0.20ct Diamond And Sapphire Ring
£319.00
9ct Yellow Gold Blue Topaz Stone Set Ring
Ramsdens9ct Yellow Gold Blue Topaz Stone Set Ring
£389.00
18ct Yellow Gold 1.00ct Diamond Cluster Ring
Ramsdens18ct Yellow Gold 1.00ct Diamond Cluster Ring
18ct White Gold 0.36ct Diamond Half Eternity Ring
Ramsdens18ct White Gold 0.36ct Diamond Half Eternity Ring
£479.00
Vera Wang 18ct White Gold 0.95ct Princess And Brilliant Cut Diamond Vera Wang Cluster Ring
RamsdensVera Wang 18ct White Gold 0.95ct Princess And Brilliant Cut Diamond Vera Wang Cluster Ring
9ct Yellow Gold 0.05ct Diamond And Aquamarine Ring
Ramsdens9ct Yellow Gold 0.05ct Diamond And Aquamarine Ring
£229.00
Vera Wang Platinum 1.20ct Emerald Baguette and Brilliant Cut Diamond Cluster Ring
RamsdensVera Wang Platinum 1.20ct Emerald Baguette and Brilliant Cut Diamond Cluster Ring
18ct Yellow Gold 0.50ct Diamond Trilogy Twist Ring
15% OFF
Ramsdens18ct Yellow Gold 0.50ct Diamond Trilogy Twist Ring
Was: £629.00
Now: £535.00
Save £94.00 (15%)
9ct Yellow Gold Blue Topaz And Cubic Zirconia Ring
Ramsdens9ct Yellow Gold Blue Topaz And Cubic Zirconia Ring
£299.00
18ct White Gold 1.00ct Brilliant Cut Diamond Pear Cluster Ring
Ramsdens18ct White Gold 1.00ct Brilliant Cut Diamond Pear Cluster Ring
14ct Yellow Gold 0.50ct Brilliant Cut Diamond Eternity Ring
Ramsdens14ct Yellow Gold 0.50ct Brilliant Cut Diamond Eternity Ring
£629.00
9ct White Gold 1.00ct Diamond Eternity Ring
Ramsdens9ct White Gold 1.00ct Diamond Eternity Ring
18ct White Gold 0.65ct Baguette And Brilliant Cut Diamond Solitaire Ring
15% OFF
Ramsdens18ct White Gold 0.65ct Baguette And Brilliant Cut Diamond Solitaire Ring
Was: £2,499.00
Now: £2,125.00
Save £374.00 (15%)
From £25.19 / monthFinance options available
18ct White Gold 1.00ct Brilliant Cut Diamond Solitaire Ring
Ramsdens18ct White Gold 1.00ct Brilliant Cut Diamond Solitaire Ring
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.