Approx. 0.06ct total · Round brilliant
D–F colour · VS1+ clarity
Made to order — dispatched in around four weeks, hallmarked where required
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Lab-grown diamond quality
D–F colour · VS1 clarity or better
Every lab-grown diamond is D–F colour and VS1 clarity or better. Round brilliant lab-grown diamonds can receive a formal cut grade; fancy shapes are assessed through their proportions, polish, symmetry and overall make. Any piece whose centre stone, on its own, weighs 1.00ct or more includes an individual IGI grading report as standard. Total carat weight does not count towards this.
Iona catches the eye by refusing to follow a straight line. Its delicate gold band carries seven stones in a measured progression, turning a small change in scale into the whole character of the ring. The result feels light, thoughtful and quietly personal.
Across the front, pairs of round brilliant lab-grown diamonds step from 1.40mm to 1.30mm and then 1.20mm, finishing with one 1.00mm stone. Micro prong settings keep that changing rhythm at the centre of the design. Rather than relying on size alone, Iona draws its presence from balance, detail and the gentle movement of the bypass form.
Also in sterling silver. Iona is available in 925 sterling silver — see the silver version.
Iona turns seven carefully graduated lab-grown diamonds into a design with direction and poise. Their D to F colour and VS1 clarity or better make every small detail count, while the micro prong setting supports the fine composition. Choose 14kt for the harder, more scratch-resistant gold, or 18kt for more pure gold and a heavier feel. Iona is also available separately in 925 sterling silver.
This ring is made to order in your size. Choose your UK ring size when you order — there is no extra charge for any size. If you are unsure of your size, our ring sizer makes it easy at home — and your £5 comes straight back to you as a gift card. Standard UK sizes are available — if you need guidance, contact us before placing your order.
Every piece is crafted to your chosen metal and ring size. Our usual timeline is around four weeks from order to dispatch, which includes UK hallmarking where required. More complex pieces may take slightly longer. We confirm the expected timeframe in writing before production begins.
The bypass shape gives Iona a clear identity without overwhelming nearby jewellery. Wear it alone when you want the graduated stones to lead, or place it beside a fine plain band. White, yellow and rose gold each change the contrast while preserving the delicate profile.
Why are Iona's lab-grown diamonds different sizes?
The seven round brilliant lab-grown diamonds step down deliberately across the ring. There are two at 1.40mm, two at 1.30mm, two at 1.20mm and one at 1.00mm, creating Iona's graduated design.
What setting does Iona use?
Iona uses micro prong settings for its seven round brilliant lab-grown diamonds. The fine settings keep the focus on the stones as they step down in size across the front.
How do I choose the right size for Iona?
Select your UK ring size when ordering and Iona will be made to that size at no extra charge. If needed, order the £5 home ring sizer and receive the same value back as a gift card.
Store separately in the pouch or box provided. Avoid contact with harsh chemicals, perfume, and chlorine. Clean gently with a soft cloth or mild soap solution. Remove before swimming, exercising, or sleeping. See our Materials & Care guide for full instructions.
Unsure on size, metal, or lab-grown diamond specification? Email us and we'll guide you to the right option before you order — we reply personally, within two working days.
All pieces are made to order. Sterling silver and gold pieces dispatch in around four weeks, which includes UK hallmarking where required. Every order is tracked and signed for, and UK delivery is free. See how your piece is made, plus our Shipping & Delivery and Returns & Refunds pages for full details.
