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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 Pearl Heart Single Stone Ring
Ramsdens9ct Yellow Gold Pearl Heart Single Stone Ring
£149.00
9ct Yellow Gold Cubic Zirconia Three Stone Ring
Ramsdens9ct Yellow Gold Cubic Zirconia Three Stone Ring
£229.00
Silver Double Wishbone Ring
RamsdensSilver Double Wishbone Ring
£39.00
18ct Yellow Gold Cubic Zirconia Greek Key Fancy Ring
Ramsdens18ct Yellow Gold Cubic Zirconia Greek Key Fancy Ring
£719.00
9ct Yellow Gold Square Plain Signet Ring
Ramsdens9ct Yellow Gold Square Plain Signet Ring
£469.00
18ct Yellow Gold 0.30ct Brilliant Cut Diamond and Ruby Ring
Ramsdens18ct Yellow Gold 0.30ct Brilliant Cut Diamond and Ruby Ring
£829.00
9ct White Gold Patterned Wedding Band 6mm
Ramsdens9ct White Gold Patterned Wedding Band 6mm
£239.00
9ct Yellow Gold 0.05ct Diamond Twist Wedding Band 3mm
Ramsdens9ct Yellow Gold 0.05ct Diamond Twist Wedding Band 3mm
£179.00
9ct Yellow Gold Patterned Twirls Wedding Band 6mm
Ramsdens9ct Yellow Gold Patterned Twirls Wedding Band 6mm
£319.00
22ct Yellow Gold Cubic Zirconia Butterfly Ring
Ramsdens22ct Yellow Gold Cubic Zirconia Butterfly Ring
£565.00
18ct Yellow Gold 1.00ct Brilliant Cut Diamond Trilogy Ring
Ramsdens18ct Yellow Gold 1.00ct Brilliant Cut Diamond Trilogy Ring
9ct White Gold 0.24ct Princess and Brilliant Cut Diamond Cluster Ring
Ramsdens9ct White Gold 0.24ct Princess and Brilliant Cut Diamond Cluster Ring
£329.00
9ct Yellow Gold 0.20ct Brilliant Cut Diamond Solitaire Ring
Ramsdens9ct Yellow Gold 0.20ct Brilliant Cut Diamond Solitaire Ring
£319.00
14ct Yellow Gold 0.25ct Brilliant Cut Lab Grown Diamond Solitaire Ring
Ramsdens14ct Yellow Gold 0.25ct Brilliant Cut Lab Grown Diamond Solitaire Ring
£299.00
18ct White Gold 1.15ct Cushion and Brilliant Cut Lab Grown Diamond Cluster Ring
Ramsdens18ct White Gold 1.15ct Cushion and Brilliant Cut Lab Grown Diamond Cluster Ring
£869.00
18ct Yellow Gold 0.29ct Millenium Cut Diamond Solitaire Ring
Ramsdens18ct Yellow Gold 0.29ct Millenium Cut Diamond Solitaire Ring
£599.00
9ct White Gold Pink and Clear Cubic Zirconia Fancy Ring
Ramsdens9ct White Gold Pink and Clear Cubic Zirconia Fancy Ring
£129.00
9ct Yellow Gold Cubic Zirconia and Sapphire Cluster Ring
Ramsdens9ct Yellow Gold Cubic Zirconia and Sapphire Cluster Ring
£269.00
9ct White Gold Cubic Zirconia Solitaire Crossover Ring
Ramsdens9ct White Gold Cubic Zirconia Solitaire Crossover Ring
£179.00
18ct Yellow Gold 0.01ct Diamond and Sapphire Ring
Ramsdens18ct Yellow Gold 0.01ct Diamond and Sapphire Ring
£599.00
18ct White Gold 0.75ct Brilliant and Asscher Cut Diamond Cluster Ring
Ramsdens18ct White Gold 0.75ct Brilliant and Asscher Cut Diamond Cluster Ring
Was: £2,300.00
Now: £1,299.00
Save £1,001.00 (44%)
From £17.86 / monthFinance options available
18ct White Gold 0.30ct Brilliant Cut Diamond and Sapphire Cluster Ring
Ramsdens18ct White Gold 0.30ct Brilliant Cut Diamond and Sapphire Cluster Ring
£549.00
9ct White Gold 0.25ct Brilliant Cut Diamond Half Eternity Ring
Ramsdens9ct White Gold 0.25ct Brilliant Cut Diamond Half Eternity Ring
£299.00
18ct Yellow Gold 1.00ct Brilliant Cut Diamond Cluster Ring
Ramsdens18ct 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.