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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 Patterned Wedding Band 5.4mm
Ramsdens9ct Yellow Gold Patterned Wedding Band 5.4mm
£149.00
9ct Yellow Gold Smoky Quartz Single Stone Ring
Ramsdens9ct Yellow Gold Smoky Quartz Single Stone Ring
£279.00
18ct Yellow Gold 0.75ct Baguette and Princess Cut Diamond Fancy Ring
Ramsdens18ct Yellow Gold 0.75ct Baguette and Princess Cut Diamond Fancy Ring
£799.00
18ct Yellow Gold 1.00ct Princess Baguette and Brilliant Cut Diamond Cluster Ring
Ramsdens18ct Yellow Gold 1.00ct Princess Baguette and Brilliant Cut Diamond Cluster Ring
9ct Yellow Gold 0.05ct Diamond and Turquoise Five Stone Ring
Ramsdens9ct Yellow Gold 0.05ct Diamond and Turquoise Five Stone Ring
£239.00
14ct Yellow Gold 0.05ct Diamond and Tanzanite Single Stone Ring
Ramsdens14ct Yellow Gold 0.05ct Diamond and Tanzanite Single Stone Ring
£399.00
9ct Yellow Gold 0.05ct Diamond and Amethyst Three Stone Ring
Ramsdens9ct Yellow Gold 0.05ct Diamond and Amethyst Three Stone Ring
£159.00
18ct Yellow Gold 0.15ct Diamond and Sapphire Cluster Ring
Ramsdens18ct Yellow Gold 0.15ct Diamond and Sapphire Cluster Ring
£379.00
9ct Yellow Gold Multi Gemstone and Garnet Fancy Cluster Ring
Ramsdens9ct Yellow Gold Multi Gemstone and Garnet Fancy Cluster Ring
£269.00
18ct Yellow Gold 0.75ct Brilliant Cut Diamond Trilogy Ring
Ramsdens18ct Yellow Gold 0.75ct Brilliant Cut Diamond Trilogy Ring
£799.00
Silver Cubic Zirconia Single Stone Fancy Ring
RamsdensSilver Cubic Zirconia Single Stone Fancy Ring
£39.00
Silver Cubic Zirconia Single Stone Ring
RamsdensSilver Cubic Zirconia Single Stone Ring
£49.00
9ct Yellow Gold 0.01ct Diamond and Garnet Single Stone Ring
Ramsdens9ct Yellow Gold 0.01ct Diamond and Garnet Single Stone Ring
£179.00
9ct Yellow Gold Tanzanite Five Stone Ring
Ramsdens9ct Yellow Gold Tanzanite Five Stone Ring
£189.00
Silver Cubic Zirconia Triangle Wrap Around Ring By Icesia
RamsdensSilver Cubic Zirconia Triangle Wrap Around Ring By Icesia
£25.00
Silver Cubic Zirconia Five Stone Ring By Icesia
RamsdensSilver Cubic Zirconia Five Stone Ring By Icesia
£29.00
9ct Yellow Gold Cubic Zirconia Three Stone Ring
Ramsdens9ct Yellow Gold Cubic Zirconia Three Stone Ring
£219.00
9ct Yellow Gold Blue Topaz and Cubic Zirconia Three Stone Ring
Ramsdens9ct Yellow Gold Blue Topaz and Cubic Zirconia Three Stone Ring
£319.00
9ct Yellow Gold Cubic Zirconia Single Stone Ring
Ramsdens9ct Yellow Gold Cubic Zirconia Single Stone Ring
£149.00
9ct Yellow Gold Cubic Zirconia Single Stone Ring
Ramsdens9ct Yellow Gold Cubic Zirconia Single Stone Ring
£159.00
9ct White Gold 0.05ct Diamond and Sapphire Ring
Ramsdens9ct White Gold 0.05ct Diamond and Sapphire Ring
£239.00
9ct Yellow Gold 0.05ct Diamond and Ruby Three Row Ring
Ramsdens9ct Yellow Gold 0.05ct Diamond and Ruby Three Row Ring
£399.00
9ct Yellow Gold Cubic Zirconia Solitaire Ring
Ramsdens9ct Yellow Gold Cubic Zirconia Solitaire Ring
£129.00
9ct Yellow Gold Plain Wedding Band 2.9mm
Ramsdens9ct Yellow Gold Plain Wedding Band 2.9mm
£109.00
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.