From Four Sovereigns to One Signet Ring: A Bespoke Gold Transformation

Every so often a commission comes in that reminds us why bespoke jewellery is such a privilege to work on. This one arrived with a small drawstring pouch, four gold coins inside, and a ring that had clearly been well loved but no longer quite fit — literally or figuratively.

A trade client got in touch with a 9 carat yellow gold signet ring he was fond of. The decorative shoulders were exactly what he wanted to keep — that detail had sentimental value and he didn't want to lose it in a redesign. But the ring itself had two problems. The band was thin, worn slim by years of wear, and it was the wrong size. On top of that, he'd always wanted the ring in 22 carat gold rather than 9 carat — a richer colour, a heavier feel, and a purity that meant something to him.

Then came the part that made this commission genuinely special: he already owned four 22 carat gold sovereign coins, and he asked us whether we could melt them down and use that gold to remake his ring.

The answer, happily, was yes.

Why Melt Down Sovereigns for a Ring?

Gold sovereigns are struck in 22 carat gold — 91.6% pure — which is exactly the fineness jewellers refer to as 916 gold. It's a warmer, deeper colour than the 18ct or 9ct gold most rings are made from, and it's noticeably heavier in the hand. For anyone who has inherited or collected sovereigns, whether as gifts, investments, or family pieces passed down over the years, turning them into a wearable object rather than leaving them in a drawer or a safe is an increasingly popular request.

It's also, in a lovely way, a form of continuity. The gold in this ring has history. It was minted, collected, kept, and is now worn every day rather than tucked away.

Making the New Ring: Keeping What Mattered, Rebuilding the Rest

Because our client loved the decorative shoulders of his original ring, the first step was to take a mould directly from it. This meant the new ring could carry over that exact detailing rather than starting the design from scratch — the character of the original piece, preserved in the new one.

From there, the four sovereigns were melted down, and that reclaimed 22 carat gold became the raw material for the new ring. Casting from sentimental or inherited gold isn't simply a case of melting and pouring; the metal needs to be prepared, alloyed correctly for casting if required, and worked exactly as any fine gold would be, taking into account that 22ct gold behaves differently on the bench to 9ct or 18ct.

Melting down 22-carat Gold sovereign coins

The original ring weighed around 8 grams. Once remade in 22 carat gold, with a substantial half-shank added to the band, the new ring came in at approximately 20 grams — a significant, satisfying increase in both weight and presence. That half-shank was a deliberate decision by our goldsmith: the original band had been thin and prone to wear, so rather than simply replicate it, we reinforced the underside of the ring to give it real longevity. A ring like this should still be doing its job in another fifty years.

The original 9ct ring alongside the finished 22ct piece, cast from the client's own sovereigns.

The whole commission, from initial consultation through to the finished ring, took around four weeks — fairly typical for a bespoke signet ring of this complexity, and the same considered process every commission goes through as part of our bespoke design service.

The Hallmark: 916 Gold

Because the finished ring was cast entirely from sovereign gold, it carries a 916 hallmark — denoting 91.6% gold purity, the standard for 22 carat gold in the UK. Every piece we make in precious metal is hallmarked in line with UK law, and for a ring like this, that 916 stamp is a nice, quiet confirmation of exactly what the client asked for: his coins, his gold, now his ring.

A Ring Worth Wearing

The finished signet ring, worn and ready for daily life.

The finished ring was, by every measure, a success — heavier, richer in colour, correctly sized, and still unmistakably the ring our client had started with, decorative shoulders and all. It's the kind of transformation that photographs beautifully, but means even more in person: a ring you can feel the weight of, made from gold that already had a story before it ever touched a mould.

Thinking About Remaking Your Own Gold?

If you have gold sovereigns, an old ring that no longer fits, or inherited jewellery sitting in a drawer, this is exactly the sort of commission we love taking on. Whether it's melting down coins, reworking a sentimental piece into something you'll actually wear, or upgrading 9ct gold to 18ct or 22ct, our bespoke design service is built around conversations like the one that started this project. As part of our work, we remake rings faithful to original designs, sometimes from an original piece, or from photographs. 

Get in touch with our team to talk through what's possible with the gold you already own.

Frequently Asked Questions

Who remakes rings from old gold or coins?
Serendipity Diamonds is a bespoke jewellery workshop based on the Isle of Wight that specialises in remaking rings from a client's existing gold, including melting down sovereigns, inherited jewellery, or old rings that no longer fit. Every piece is remade by hand as part of our bespoke design service, with the original gold reused in the new ring.

Can you really melt down gold sovereign coins to make a ring?
Yes. Gold sovereigns are 22 carat (916) gold, and this is a fineness we regularly cast in for bespoke commissions. The coins are melted down and the reclaimed gold is used as the raw material for the new piece.

What does a 916 hallmark mean?
916 refers to gold that is 91.6% pure, which is the UK standard for 22 carat gold. Any ring cast entirely from 22ct gold, such as one made from sovereign coins, will carry this hallmark.

What happens to the hallmark if I mix different gold purities?
If jewellery of different gold purities is melted down together, the resulting piece reflects the combined purity of the metals used, not the highest or lowest of the two. For example, melting an 18 carat gold ring together with a 9 carat gold ring may result in a piece that hallmarks at 14 carat gold. We assess the purity of the gold being combined before a commission begins, so you know what hallmark to expect on the finished piece.

Can you keep the design of my existing ring if I want the metal changed?
Yes. Where a client has design details they want to preserve, such as decorative shoulders or an engraved pattern, we can take a mould directly from the original piece so those details carry over into the new ring, even in a different carat of gold.

How much does it cost to remake a ring from existing gold?
As a guide, remaking a ring from existing gold typically costs between £600 and £1,000, depending on the complexity of the design and any additional work required, such as reinforcing the band or adding new detailing. We provide a firm quote after discussing your specific commission.

How long does a bespoke commission like this take?
This particular commission took around four weeks from consultation to completion, which is typical for a bespoke piece of this complexity.

Can I use my own gold, coins, or jewellery towards a new commission?
Yes, this is something we're regularly asked to do. Whether it's sovereigns, an old ring, or other gold jewellery, we can talk you through what's achievable and how the reclaimed gold can be used in a new piece.

Are you interested in seeing other bespoke work? View our portfolio of bespoke jewellery designs on our main Serendipity Diamonds website.