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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 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
18ct Yellow Gold 1.07cts Diamond Solitaire Ring
30% OFF
Ramsdens18ct Yellow Gold 1.07cts Diamond Solitaire Ring
Was: £4,999.00
Now: £3,499.00
Save £1,500.00 (30%)
From £41.48 / monthFinance options available
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
£239.00
9ct Yellow Gold Diamond Eternity Ring by Anya Belle
50% OFF
Ramsdens9ct Yellow Gold Diamond Eternity Ring by Anya Belle
Was: £999.00
Now: £499.00
Save £500.00 (50%)
From £18.00 / monthFinance options available
9ct White Gold Diamond Cluster Ring by Anya Belle
Ramsdens9ct White Gold Diamond Cluster Ring by Anya Belle
£279.00
MRRP £449.00
Platinum 0.40cts Diamond And Pink Sapphire Octagon Ring
10% OFF
RamsdensPlatinum 0.40cts Diamond And Pink Sapphire Octagon Ring
Was: £1,499.00
Now: £1,349.00
Save £150.00 (10%)
From £17.91 / monthFinance options available
18ct Yellow Gold Rub over 0.80ct Diamond Solitaire Ring
Ramsdens18ct Yellow Gold Rub over 0.80ct Diamond Solitaire Ring
18ct White Gold Diamond And Sapphire Ring
Ramsdens18ct White Gold Diamond And Sapphire Ring
18ct White Gold 0.53ct Marquise Diamond Cluster Ring
Ramsdens18ct White Gold 0.53ct Marquise Diamond Cluster Ring
18ct White Gold Diamond And Emerald Cluster Ring
Ramsdens18ct White Gold Diamond And Emerald Cluster Ring
9ct Yellow Gold Approx. 0.51ct Diamond Eternity Ring by Anya Belle
Ramsdens9ct Yellow Gold Approx. 0.51ct Diamond Eternity Ring by Anya Belle
£599.00
MRRP £1,099.00
9ct White Gold Approx. 0.46ct Diamond Eternity Ring by Anya Belle
50% OFF
Ramsdens9ct White Gold Approx. 0.46ct Diamond Eternity Ring by Anya Belle
Was: £629.00
Now: £315.00
Save £314.00 (50%)
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
25% OFF
Ramsdens9ct White Gold 1.24ct Diamond 2 Row Ring by Anya Belle
Was: £1,249.00
Now: £935.00
Save £314.00 (25%)
From £18.06 / monthFinance options available
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
50% OFF
Ramsdens9ct Yellow Gold Diamond Cluster Ring by Anya Belle
Was: £1,299.00
Now: £649.00
Save £650.00 (50%)
From £17.98 / monthFinance options available
9ct White Gold 0.24cts Diamond Cluster Twist Ring by Anya Belle
Ramsdens9ct White Gold 0.24cts 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
MRRP £699.00
9ct Yellow Gold 0.49ct Diamond Eternity Ring by Anya Belle
Ramsdens9ct Yellow Gold 0.49ct Diamond Eternity Ring by Anya Belle
£569.00
9ct Yellow Gold Diamond Cluster Ring by Anya Belle
50% OFF
Ramsdens9ct Yellow Gold Diamond Cluster Ring by Anya Belle
Was: £439.00
Now: £219.00
Save £220.00 (50%)
9ct Yellow Gold 0.09cts Diamond Fancy Ring by Anya Belle
Ramsdens9ct Yellow Gold 0.09cts Diamond Fancy Ring by Anya Belle
£299.00
MRRP £350.00
9ct Yellow Gold 0.24cts Diamond Eternity Ring by Anya Belle
Ramsdens9ct Yellow Gold 0.24cts Diamond Eternity Ring by Anya Belle
£369.00
MRRP £589.00
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.