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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 Hematite Centurian Oval Signet Ring
Ramsdens9ct Yellow Gold Hematite Centurian Oval Signet Ring
£539.00
18ct Yellow Gold 0.10ct Diamond And Garnet Ring
Ramsdens18ct Yellow Gold 0.10ct Diamond And Garnet Ring
£359.00
9ct White Gold Pink Topaz And Cubic Zirconia Crossover Ring
Ramsdens9ct White Gold Pink Topaz And Cubic Zirconia Crossover Ring
£179.00
18ct White Gold 0.50ct Brilliant Cut Diamond Solitaire Ring
Ramsdens18ct White Gold 0.50ct Brilliant Cut Diamond Solitaire Ring
Palladium 0.50ct Brilliant Cut Diamond Solitaire Ring
RamsdensPalladium 0.50ct Brilliant Cut Diamond Solitaire Ring
£679.00
18ct White Gold 1.00ct Brilliant Cut Diamond Solitaire Ring
Ramsdens18ct White Gold 1.00ct Brilliant Cut Diamond Solitaire Ring
9ct Yellow Gold 1.00ct Brilliant Cut Diamond Cluster Ring
Ramsdens9ct Yellow Gold 1.00ct Brilliant Cut Diamond Cluster Ring
9ct Yellow Gold 0.25ct Brilliant Cut Diamond Trilogy Ring
Ramsdens9ct Yellow Gold 0.25ct Brilliant Cut Diamond Trilogy Ring
£419.00
18ct Yellow Gold 0.33ct Brilliant Cut Diamond Trilogy Ring
Ramsdens18ct Yellow Gold 0.33ct Brilliant Cut Diamond Trilogy Ring
£579.00
18ct Yellow Gold 0.50ct Brilliant Cut Diamond Crossover Ring
Ramsdens18ct Yellow Gold 0.50ct Brilliant Cut Diamond Crossover Ring
£549.00
9ct Yellow Gold 0.03ct Diamond And Mystic Topaz Cluster Ring
Ramsdens9ct Yellow Gold 0.03ct Diamond And Mystic Topaz Cluster Ring
£289.00
9ct Yellow Gold Mystic Topaz Single Stone Ring
Ramsdens9ct Yellow Gold Mystic Topaz Single Stone Ring
£379.00
9ct Yellow Gold Amethyst And Cubic Zirconia Twist Ring
Ramsdens9ct Yellow Gold Amethyst And Cubic Zirconia Twist Ring
£249.00
18ct White Gold 0.10ct Diamond and Sapphire Three Stone Ring
Ramsdens18ct White Gold 0.10ct Diamond and Sapphire Three Stone Ring
£319.00
9ct Yellow Gold Rennie Mac Open Work Ring
Ramsdens9ct Yellow Gold Rennie Mac Open Work Ring
£319.00
14ct Yellow Gold Triple Coin Ring
Ramsdens14ct Yellow Gold Triple Coin Ring
£409.00
14ct Yellow Gold Cubic Zirconia Fancy Ring
Ramsdens14ct Yellow Gold Cubic Zirconia Fancy Ring
£485.00
14ct Yellow And White Gold Five Row Ring
Ramsdens14ct Yellow And White Gold Five Row Ring
£425.00
18ct White Gold 0.50ct Brilliant Cut Diamond Solitaire Ring
Ramsdens18ct White Gold 0.50ct Brilliant Cut Diamond Solitaire Ring
Was: £799.00
Now: £599.00
Save £200.00 (25%)
9ct Yellow Gold 0.25ct Brilliant Cut Diamond Five Stone Ring
Ramsdens9ct Yellow Gold 0.25ct Brilliant Cut Diamond Five Stone Ring
£319.00
9ct Yellow Gold Garnet Solitaire Ring
Ramsdens9ct Yellow Gold Garnet Solitaire Ring
£219.00
9ct Yellow Gold Citrine Solitaire Ring
Ramsdens9ct Yellow Gold Citrine Solitaire Ring
£239.00
9ct Yellow Gold Heart Signet Ring
Ramsdens9ct Yellow Gold Heart Signet Ring
£205.00
9ct Yellow Gold 1.00ct Brilliant Cut Diamond Cluster Ring
Ramsdens9ct Yellow Gold 1.00ct Brilliant Cut Diamond Cluster 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.