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 Yellow and Rose Gold Tree Of Life Clogau Ring
Ramsdens9ct Yellow and Rose Gold Tree Of Life Clogau Ring
£289.00
18ct White Gold 0.75ct Brilliant and Baguette Cut Diamond Fancy Ring
Ramsdens18ct White Gold 0.75ct Brilliant and Baguette Cut Diamond Fancy Ring
18ct Yellow Gold 0.50ct Princess Cut Diamond Solitaire Ring
Ramsdens18ct Yellow Gold 0.50ct Princess Cut Diamond Solitaire Ring
9ct White Gold 0.10ct Diamond Four Stone Ring
Ramsdens9ct White Gold 0.10ct Diamond Four Stone Ring
£169.00
9ct Yellow Gold 0.05ct Diamond and Iolite Single Stone Ring
Ramsdens9ct Yellow Gold 0.05ct Diamond and Iolite Single Stone Ring
£199.00
9ct Yellow Gold 0.05ct Diamond and Sapphire Cluster Ring
Ramsdens9ct Yellow Gold 0.05ct Diamond and Sapphire Cluster Ring
£199.00
9ct Yellow Gold 1.00ct Princess and Brilliant Cut Diamond Cluster Ring
Ramsdens9ct Yellow Gold 1.00ct Princess and Brilliant Cut Diamond Cluster Ring
18ct White Gold 0.50ct Brilliant Cut Diamond Trilogy Ring
Ramsdens18ct White Gold 0.50ct Brilliant Cut Diamond Trilogy Ring
£799.00
9ct Yellow Gold 0.50ct Brilliant Cut Diamond Infinity Ring
Ramsdens9ct Yellow Gold 0.50ct Brilliant Cut Diamond Infinity Ring
£339.00
9ct Yellow Gold 0.15ct Brilliant Cut Diamond Cluster Ring
Ramsdens9ct Yellow Gold 0.15ct Brilliant Cut Diamond Cluster Ring
£159.00
9ct Yellow Gold 0.10ct Diamond Fancy Ring
Ramsdens9ct Yellow Gold 0.10ct Diamond Fancy Ring
£209.00
9ct White Gold 0.05ct Brilliant Cut Diamond and Lolite Solitaire Ring
Ramsdens9ct White Gold 0.05ct Brilliant Cut Diamond and Lolite Solitaire Ring
£229.00
9ct Yellow Gold 0.30ct Brilliant Cut Diamond and Sapphire Cluster Ring
Ramsdens9ct Yellow Gold 0.30ct Brilliant Cut Diamond and Sapphire Cluster Ring
£329.00
9ct Yellow Gold Blue Topaz and Cubic Zirconia Solitaire Ring
Ramsdens9ct Yellow Gold Blue Topaz and Cubic Zirconia Solitaire Ring
£479.00
9ct Yellow Gold Garnet Eternity Ring
Ramsdens9ct Yellow Gold Garnet Eternity Ring
£139.00
9ct Yellow Gold 0.04ct Brilliant Cut Diamond and Sapphire Fancy Ring
Ramsdens9ct Yellow Gold 0.04ct Brilliant Cut Diamond and Sapphire Fancy Ring
£359.00
9ct Yellow Gold Cubic Zirconia and Sapphire Fancy Ring
Ramsdens9ct Yellow Gold Cubic Zirconia and Sapphire Fancy Ring
£129.00
9ct Yellow Gold Cubic Zirconia and Sapphire Cluster Ring
Ramsdens9ct Yellow Gold Cubic Zirconia and Sapphire Cluster Ring
£169.00
9ct Yellow Gold Cubic Zirconia and Sapphire Cluster Ring
Ramsdens9ct Yellow Gold Cubic Zirconia and Sapphire Cluster Ring
£339.00
9ct Yellow Gold Tanzanite and Opal Cluster Ring
Ramsdens9ct Yellow Gold Tanzanite and Opal Cluster Ring
£229.00
9ct Yellow Gold Cubic Zirconia and Sapphire Half Eternity Ring
Ramsdens9ct Yellow Gold Cubic Zirconia and Sapphire Half Eternity Ring
£139.00
9ct Yellow Gold Blue Gemstone and Cubic Zirconia Eternity Ring
Ramsdens9ct Yellow Gold Blue Gemstone and Cubic Zirconia Eternity Ring
£275.00
9ct Yellow Gold Wishbone Ring
Ramsdens9ct Yellow Gold Wishbone Ring
£299.00
9ct White Gold 0.05ct Diamond Solitaire Ring
Ramsdens9ct White Gold 0.05ct Diamond Solitaire Ring
£119.00
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.