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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 Cubic Zirconia and Sapphire Cluster Ring
Ramsdens9ct Yellow Gold Cubic Zirconia and Sapphire Cluster Ring
£339.00
9ct Yellow Gold Tanzanite and Opal Cluster Ring
Ramsdens9ct Yellow Gold Tanzanite and Opal Cluster Ring
£229.00
9ct Yellow Gold Cubic Zirconia and Sapphire Half Eternity Ring
Ramsdens9ct Yellow Gold Cubic Zirconia and Sapphire Half Eternity Ring
£139.00
9ct Yellow Gold Blue Gemstone and Cubic Zirconia Eternity Ring
Ramsdens9ct Yellow Gold Blue Gemstone and Cubic Zirconia Eternity Ring
£275.00
9ct Yellow Gold Wishbone Ring
Ramsdens9ct Yellow Gold Wishbone Ring
£299.00
9ct White Gold 0.05ct Diamond Solitaire Ring
Ramsdens9ct White Gold 0.05ct Diamond Solitaire Ring
£119.00
9ct Yellow Gold 0.05ct Diamond and Peridot Solitaire Ring
Ramsdens9ct Yellow Gold 0.05ct Diamond and Peridot Solitaire Ring
£269.00
9ct Yellow and Rose Gold 0.05ct Diamond Cariad Clogau Ring
Ramsdens9ct Yellow and Rose Gold 0.05ct Diamond Cariad Clogau Ring
£459.00
18ct White Gold 0.63ct Brilliant Cut Diamond Solitaire Ring
Ramsdens18ct White Gold 0.63ct Brilliant Cut Diamond Solitaire Ring
18ct Yellow Gold 0.50ct Brilliant Cut Diamond Two Stone Ring
Ramsdens18ct Yellow Gold 0.50ct Brilliant Cut Diamond Two Stone Ring
£699.00
18ct Yellow Gold 1.00ct Brilliant Cut Diamond Five Stone Eternity Ring
Ramsdens18ct Yellow Gold 1.00ct Brilliant Cut Diamond Five Stone Eternity Ring
18ct Yellow Gold 1.00ct Brilliant Cut Diamond Solitaire Ring
Ramsdens18ct Yellow Gold 1.00ct Brilliant Cut Diamond Solitaire Ring
9ct White Gold 0.15ct Brilliant Cut Diamond Eternity Ring
Ramsdens9ct White Gold 0.15ct Brilliant Cut Diamond Eternity Ring
£279.00
18ct White Gold 0.15ct Brilliant Cut Diamond Eternity Ring
Ramsdens18ct White Gold 0.15ct Brilliant Cut Diamond Eternity Ring
£329.00
18ct White Gold 1.00ct Brilliant Cut Diamond Trilogy Ring
Ramsdens18ct White Gold 1.00ct Brilliant Cut Diamond Trilogy Ring
18ct White Gold 1.00ct Brilliant Cut Diamond Solitaire Ring
Ramsdens18ct White Gold 1.00ct Brilliant Cut Diamond Solitaire Ring
18ct White Gold 0.50ct Brilliant Cut Diamond Cluster Ring
Ramsdens18ct White Gold 0.50ct Brilliant Cut Diamond Cluster Ring
£879.00
18ct White Gold 0.16ct Diamond and Sapphire Single Stone Ring
Ramsdens18ct White Gold 0.16ct Diamond and Sapphire Single Stone Ring
18ct White Gold 0.11ct Diamond and Sapphire Single Stone Ring
Ramsdens18ct White Gold 0.11ct Diamond and Sapphire Single Stone Ring
18ct White Gold 0.78ct Brilliant Cut Diamond Solitaire Ring
Ramsdens18ct White Gold 0.78ct Brilliant Cut Diamond Solitaire Ring
9ct Yellow Gold Aquamarine Seven Stone Eternity Ring
Ramsdens9ct Yellow Gold Aquamarine Seven Stone Eternity Ring
£239.00
14ct Yellow Gold Sapphire and Opal Cluster Ring
Ramsdens14ct Yellow Gold Sapphire and Opal Cluster Ring
£329.00
9ct Yellow Gold Cubic Zirconia and Amethyst Fancy Ring
Ramsdens9ct Yellow Gold Cubic Zirconia and Amethyst Fancy Ring
£419.00
9ct Yellow Gold Cubic Zirconia Triangle Single Stone Ring
Ramsdens9ct Yellow Gold Cubic Zirconia Triangle Single Stone Ring
£199.00
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.