Aquamarine Diamond Full Eternity Ring
or 3 interest-free payments of £600.00
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- Handmade in Sussex, England
- One free resize, whenever you need it
- 28-day returns, even made to order
This eternity ring pairs 2mm round brilliant-cut diamonds with baguette-cut aquamarines, each stone measuring 4mm by 2mm, set in an alternating rhythm around the band. Choose platinum for a 20-year guarantee or 9ct white gold, which carries a 10-year guarantee.
For a full eternity design the band carries eight baguette aquamarines and eight diamonds running the complete circle, while a 40% spread version — using three baguettes and four diamonds — concentrates the sparkle across the top of the finger and suits those who prefer a lower profile for everyday wear.
The ring is available in a 3mm width, as pictured, or a slimmer 2mm option, and pairs beautifully with a plain wedding band. To discuss stone combinations or width in person, book an appointment at our Sussex workshop.
Choose your ring size
UK sizes, including half sizes. Comfort-fitted inner, so we recommend your true size.
Don’t know the size?
We’ll post a free ring sizer today, or fit you in the Ditchling workshop in 20 minutes. Every ring comes with one free resize, whenever you need it — there is no time limit.The sizer is free with the code FREERINGSIZER — the button below applies it for you.
Which metal?
Still deciding?
Our precious metals guide goes into colour, hardness and how each one ages. Or talk it through with us — we do this every day.
Ring fit guide
Our bands have a comfort-fitted inner, so they feel slightly looser than a flat band — order your true size.
Tap a row to select that size.
- Measure when your hands are at room temperature — not too warm, not too cold.
- Cold hands measure up to half a size smaller — avoid measuring in winter or after exercise.
- A wider band needs a slightly larger size: at 6mm and above, go up a half size.
Still unsure? We post a free ring sizer the same day. Every ring comes with one free resize, whenever you need it — there is no time limit. The sizer is free with the code FREERINGSIZER — the button below applies it for you.
Our ★★★★★ Reviews
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- Rated 5 out of 5 starsOctober 5, 2026Gorgeous, well made ring
This is a beautiful piece. Very pleased I bought it. I got platinum and was surprised at how heavy it is. I wear it with another diamond band ring. Definitely recommend Pruden & Smith. Wonderful jewellery.
Marion G.Verified BuyerReviewingAquamarine Diamond Full Eternity Ring Platinum / 40% Half Eternity Ring
Handmade in England
In a world of mass-produced, machine-made jewellery, often imported in bulk and discarded from season to season, we stand by the enduring value of handmade luxury. We create jewellery designed to last for generations, not just seasons. When you invest in a handmade piece of jewellery, you’re investing in something timeless, something you’ll never need to replace.