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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 White Gold 0.17ct Diamond Half Eternity Ring by Anya Belle
Ramsdens9ct White Gold 0.17ct Diamond Half Eternity Ring by Anya Belle
£329.00
9ct Yellow Gold 0.43ct Diamond Triple Cluster Ring by Anya Belle
Ramsdens9ct Yellow Gold 0.43ct Diamond Triple Cluster Ring by Anya Belle
£649.00
MRRP £1,099.00
9ct White Gold 0.43ct Diamond Triple Cluster Ring by Anya Belle
Ramsdens9ct White Gold 0.43ct Diamond Triple Cluster Ring by Anya Belle
£649.00
18ct White Gold 1.00ct Diamond Solitaire Ring
Ramsdens18ct White Gold 1.00ct Diamond Solitaire Ring
9ct Yellow Gold Cubic Zirconia Solitaire Twist Ring
Ramsdens9ct Yellow Gold Cubic Zirconia Solitaire Twist Ring
£269.00
9ct White Gold Diamond Cluster Ring by Anya Belle
Ramsdens9ct White Gold Diamond Cluster Ring by Anya Belle
£629.00
MRRP £1,250.00
Unique & Co Tungsten And Carbide Wooden Inlay Wedding Ring
Unique & CoUnique & Co Tungsten And Carbide Wooden Inlay Wedding Ring
£55.00
Unique & Co Tungsten And Carbide Rose And Brown Wedding Ring
Unique & CoUnique & Co Tungsten And Carbide Rose And Brown Wedding Ring
£55.00
Unique & Co Tungsten And Carbide Blue And Black Wedding Ring
Unique & CoUnique & Co Tungsten And Carbide Blue And Black Wedding Ring
£49.00
Unique & Co Tungsten And Carbide Rose Wedding Ring
Unique & CoUnique & Co Tungsten And Carbide Rose Wedding Ring
£49.00
Unique & Co Tungsten Carbide Black 7mm Wedding Ring
Unique & CoUnique & Co Tungsten Carbide Black 7mm Wedding Ring
£49.00
Unique & Co Tungsten Carbide 7mm Wedding Ring
Unique & CoUnique & Co Tungsten Carbide 7mm Wedding Ring
£45.00
9ct Yellow Gold Diamond Cluster Ring by Anya Belle
Ramsdens9ct Yellow Gold Diamond Cluster Ring by Anya Belle
£299.00
9ct Yellow Gold Diamond Eternity Ring by Anya Belle
Ramsdens9ct Yellow Gold Diamond Eternity Ring by Anya Belle
£999.00
9ct White Gold Diamond Cluster Ring by Anya Belle
Ramsdens9ct White Gold Diamond Cluster Ring by Anya Belle
£279.00
MRRP £449.00
18ct White Gold 0.53ct Marquise Diamond Cluster Ring
Ramsdens18ct White Gold 0.53ct Marquise Diamond Cluster Ring
18ct White Gold Diamond And Sapphire Ring
Ramsdens18ct White Gold Diamond And Sapphire Ring
18ct White Gold Diamond And Emerald Cluster Ring
Ramsdens18ct White Gold Diamond And Emerald Cluster Ring
9ct Yellow Gold Approx. 0.16ct Diamond Solitaire Ring by Anya Belle
Ramsdens9ct Yellow Gold Approx. 0.16ct Diamond Solitaire Ring by Anya Belle
£279.00
9ct White Gold 1.24ct Diamond 2 Row Ring by Anya Belle
Ramsdens9ct White Gold 1.24ct Diamond 2 Row Ring by Anya Belle
9ct White Gold 0.20ct Diamond Fancy Ring by Anya Belle
Ramsdens9ct White Gold 0.20ct Diamond Fancy Ring by Anya Belle
£469.00
MRRP £899.00
9ct Yellow Gold Diamond Cluster Ring by Anya Belle
Ramsdens9ct Yellow Gold Diamond Cluster Ring by Anya Belle
£1,299.00
MRRP £2,199.00
9ct White Gold 0.24ct Diamond Cluster Twist Ring by Anya Belle
Ramsdens9ct White Gold 0.24ct Diamond Cluster Twist Ring by Anya Belle
£369.00
9ct Yellow Gold 0.29ct Diamond Crossover Ring by Anya Belle
Ramsdens9ct Yellow Gold 0.29ct Diamond Crossover Ring by Anya Belle
£439.00
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.