Skip to content

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 0.20ct Solitaire Diamond Ring With Diamond Shoulders
Ramsdens9ct White Gold 0.20ct Solitaire Diamond Ring With Diamond Shoulders
£469.00
RRP £797.00
9ct White Gold 0.10ct Wishbone Diamond Ring
Ramsdens9ct White Gold 0.10ct Wishbone Diamond Ring
£305.00
RRP £474.00
9ct White Gold 0.20ct Eternity Diamond Ring
Ramsdens9ct White Gold 0.20ct Eternity Diamond Ring
£455.00
RRP £706.00
9ct White Gold 0.50ct Trilogy Diamond Ring
Ramsdens9ct White Gold 0.50ct Trilogy Diamond Ring
£695.00
RRP £1,182.00
9ct White Gold 0.10ct Diamond Cluster Ring
Ramsdens9ct White Gold 0.10ct Diamond Cluster Ring
£315.00
RRP £485.00
9ct White Gold 0.25ct Eternity Diamond Ring
Ramsdens9ct White Gold 0.25ct Eternity Diamond Ring
£469.00
RRP £729.00
9ct White Gold 0.33ct Eternity Diamond Ring
Ramsdens9ct White Gold 0.33ct Eternity Diamond Ring
£509.00
RRP £791.00
9ct White Gold 0.25ct Diamond Solitaire Ring
Ramsdens9ct White Gold 0.25ct Diamond Solitaire Ring
£465.00
RRP £723.00
9ct Yellow Gold Diamond Eternity Ring by Anya Belle
50% OFF
Ramsdens9ct Yellow Gold Diamond Eternity Ring by Anya Belle
Was: £569.00
Now: £285.00
Save £284.00 (50%)
9ct Yellow Gold 0.55ct 2 Row Diamond Ring by Anya Belle
Ramsdens9ct Yellow Gold 0.55ct 2 Row Diamond Ring by Anya Belle
£749.00
9ct Yellow Gold 0.47ct Diamond Cluster Ring by Anya Belle
Ramsdens9ct Yellow Gold 0.47ct Diamond Cluster Ring by Anya Belle
£599.00
MRRP £1,099.00
9ct Yellow Gold Fancy Cubic Zirconia Ring
Ramsdens9ct Yellow Gold Fancy Cubic Zirconia Ring
£289.00
RRP £495.00
Platinum 4 Claw 0.25pt Diamond Solitaire Ring
RamsdensPlatinum 4 Claw 0.25pt Diamond Solitaire Ring
Platinum 4 Claw 0.50pt Diamond Solitaire Ring
RamsdensPlatinum 4 Claw 0.50pt Diamond Solitaire Ring
9ct Yellow Gold Half Cubic Zirconia Signet Ring
Ramsdens9ct Yellow Gold Half Cubic Zirconia Signet Ring
£479.00
RRP £819.00
9ct Yellow Gold Cubic Zirconia Heart Ring
Ramsdens9ct Yellow Gold Cubic Zirconia Heart Ring
£235.00
RRP £399.00
9ct 3 Colour Gold Russian Wedding Ring
Ramsdens9ct 3 Colour Gold Russian Wedding Ring
£349.00
9ct 3 Colour Gold Russian Wedding Ring
Ramsdens9ct 3 Colour Gold Russian Wedding Ring
£449.00
9ct Yellow Gold 4 Piece Puzzle Ring
Ramsdens9ct Yellow Gold 4 Piece Puzzle Ring
£685.00
RRP £1,165.00
9ct 3 Colour Gold 4 Piece Puzzle Ring
Ramsdens9ct 3 Colour Gold 4 Piece Puzzle Ring
£705.00
RRP £1,199.00
9ct Yellow Gold Signet Ring
Ramsdens9ct Yellow Gold Signet Ring
£339.00
RRP £579.00
9ct Yellow Gold Signet Ring
Ramsdens9ct Yellow Gold Signet Ring
£359.00
RRP £615.00
9ct Yellow Gold Signet Ring
Ramsdens9ct Yellow Gold Signet Ring
£359.00
RRP £609.00
9ct Yellow Gold Oval Plain Signet Ring
Ramsdens9ct Yellow Gold Oval Plain Signet Ring
£689.00
RRP £1,169.00
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.