O Size Rings (7 US)

In the UK, size O corresponds to a US size 7 and EU size 54 3/4, with a circumference of 55.1mm, making it a popular choice, especially among women. Enjoy the added benefit of free UK delivery, free international shipping for orders over £500 and the option to resize many of our luxurious rings, ensuring your cherished piece will fit perfectly.

Discover the Elegance of Size O Rings

At Lancastrian Jewellers, we take pride in offering a splendid array of size O rings, each meticulously crafted to add a touch of sophistication to your style. Whether you're shopping for yourself or searching for a meaningful gift, our exquisite collection of size O rings is designed to leave a lasting impression.

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32 products

The Perfect Size

If your ring size is O, you're in the right place. Our diverse collection of size O rings is a testament to precision and craftsmanship. Not certain if O is the size you need? Feel free to use our user-friendly ring size guide.

Moments of Love and Commitment

For those planning a proposal, our collection features a breathtaking selection of engagement rings, each designed to tell your unique love story. And when she says "yes," you can rely on us to help you find the ideal wedding ring that complements your choice, a symbol of your lifelong commitment.