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.
18ct Yellow Gold 0.35ct Brilliant Cut Diamond Trilogy Ring
Ramsdens18ct Yellow Gold 0.35ct Brilliant Cut Diamond Trilogy Ring
£579.00
18ct Yellow Gold 0.76ct Brilliant Cut Diamond Solitaire Ring
Ramsdens18ct Yellow Gold 0.76ct Brilliant Cut Diamond Solitaire Ring
14ct Yellow, White And Rose Gold 0.25ct Brilliant Cut Diamond Fancy Ring
Ramsdens14ct Yellow, White And Rose Gold 0.25ct Brilliant Cut Diamond Fancy Ring
£529.00
18ct White Gold 0.35ct Brilliant Cut Diamond Trilogy Ring
Ramsdens18ct White Gold 0.35ct Brilliant Cut Diamond Trilogy Ring
£579.00
18ct White Gold 0.20ct Diamond Fancy Ring
Ramsdens18ct White Gold 0.20ct Diamond Fancy Ring
£299.00
14ct Yellow Gold 0.60ct Diamond Fancy Ring
Ramsdens14ct Yellow Gold 0.60ct Diamond Fancy Ring
£649.00
18ct Yellow Gold 0.25ct Diamond Eternity Ring
Ramsdens18ct Yellow Gold 0.25ct Diamond Eternity Ring
£289.00
14ct White Gold 1.10ct Brilliant Cut Diamond Fancy Ring
Ramsdens14ct White Gold 1.10ct Brilliant Cut Diamond Fancy Ring
18ct Yellow Gold 1.00ct Princess Cut Diamond Cluster Ring
Ramsdens18ct Yellow Gold 1.00ct Princess Cut Diamond Cluster Ring
9ct Yellow Gold 0.10ct Diamond and Pink Sapphire Cluster Ring
Ramsdens9ct Yellow Gold 0.10ct Diamond and Pink Sapphire Cluster Ring
£249.00
14ct Yellow Gold Monaco Cubic Zirconia Thin Full Eternity Ring
Ramsdens14ct Yellow Gold Monaco Cubic Zirconia Thin Full Eternity Ring
£255.00
9ct Yellow Gold Plain Wishbone Ring
Ramsdens9ct Yellow Gold Plain Wishbone Ring
£269.00
9ct Yellow Gold 0.10ct Brilliant Cut Diamond Cluster Ring
Ramsdens9ct Yellow Gold 0.10ct Brilliant Cut Diamond Cluster Ring
£329.00
9ct Yellow Gold 0.50ct Brilliant Cut Diamond Fancy Ring
10% OFF
Ramsdens9ct Yellow Gold 0.50ct Brilliant Cut Diamond Fancy Ring
Was: £499.00
Now: £449.00
Save £50.00 (10%)
9ct Yellow Gold 0.07ct Brilliant Cut Diamond Interlocking Circles Ring
Ramsdens9ct Yellow Gold 0.07ct Brilliant Cut Diamond Interlocking Circles Ring
£299.00
9ct Yellow Gold 0.35ct Brilliant Cut Diamond Heart Cluster Ring
Ramsdens9ct Yellow Gold 0.35ct Brilliant Cut Diamond Heart Cluster Ring
£379.00
9ct Yellow Gold 0.15ct Brilliant Cut Diamond Cross Ring
Ramsdens9ct Yellow Gold 0.15ct Brilliant Cut Diamond Cross Ring
£299.00
9ct Yellow Gold 0.30ct Brilliant Cut Diamond Four Row Crossover Ring
Ramsdens9ct Yellow Gold 0.30ct Brilliant Cut Diamond Four Row Crossover Ring
£399.00
9ct Yellow Gold 0.20ct Brilliant Cut Diamond Curb Style Ring
Ramsdens9ct Yellow Gold 0.20ct Brilliant Cut Diamond Curb Style Ring
£399.00
9ct Yellow Gold 0.05ct Brilliant Cut Diamond Half Eternity Ring
Ramsdens9ct Yellow Gold 0.05ct Brilliant Cut Diamond Half Eternity Ring
£299.00
9ct Yellow Gold 0.10ct Brilliant Cut Diamond Crossover Ring
Ramsdens9ct Yellow Gold 0.10ct Brilliant Cut Diamond Crossover Ring
£299.00
9ct Yellow Gold 0.25ct Brilliant Cut Diamond Floral Cluster Ring
10% OFF
Ramsdens9ct Yellow Gold 0.25ct Brilliant Cut Diamond Floral Cluster Ring
Was: £439.00
Now: £395.00
Save £44.00 (10%)
9ct Yellow Gold 0.03ct Diamond and Topaz Fancy Ring
Ramsdens9ct Yellow Gold 0.03ct Diamond and Topaz Fancy Ring
£289.00
18ct Yellow Gold 0.15ct Diamond and Emerald Cluster Ring
Ramsdens18ct Yellow Gold 0.15ct Diamond and Emerald Cluster Ring
£419.00
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.