There are some jewellery symbols that never go out of fashion — and the infinity sign is firmly one of them. Simple, elegant, and quietly powerful, it's the kind of symbol that doesn't need explaining. We all just know what it means.
But as with so many symbols that end up woven into jewellery, the story behind the infinity sign is richer and older than most people realise. And knowing a little of that story can make the piece feel all the more meaningful when you wear it — or give it.
Where Does the Infinity Symbol Come From?
The infinity symbol didn't begin life as a piece of jewellery shorthand for "I love you forever" (though it's become a rather good one). Its origins stretch back through mathematics, philosophy, and even religious iconography.
In its earliest form, it was known as the lemniscate — from the Latin for "ribbon" — and it carried genuine spiritual weight. The symbol appears on Saint Boniface's cross, where it was used to represent something without beginning or end: the divine, the eternal.
It entered the world of mathematics formally in 1655, when English mathematician John Wallis adopted it to represent the concept of infinity. The mathematician Leonhard Euler later developed a closely related idea he called absolute infinitus — essentially, the notion of something completely unbounded. Today in maths, the symbol represents potential infinity: a quantity that has no limit.
What's interesting is how seamlessly all those meanings — spiritual, philosophical, mathematical — collapse into the simple human idea of something that goes on forever. Which is, of course, exactly why the infinity sign found its way into jewellery.
Why the Infinity Symbol Works So Well in Jewellery
Part of the infinity symbol's appeal in jewellery is purely visual. It's a graceful, flowing shape — symmetrical, continuous, never awkward on the body. It sits beautifully on a chain, curves naturally around a wrist, and works in any metal, plain or set with stones.
But the real reason it's endured is the meaning. In jewellery, the infinity symbol most commonly represents:
- Everlasting love
- Commitment and loyalty
- An unbreakable bond
- Eternity — past, present and future
- Two becoming one
That combination of strong symbolism and elegant simplicity makes it one of the most popular choices for meaningful gifts. It speaks without needing a card to explain it.
What Does an Infinity Necklace Mean?
Of all the ways to wear the infinity sign, the necklace is probably the most classic. Sitting at the centre of the chest, it draws the eye gently and carries its meaning close to the heart — which feels rather appropriate.
The two equal loops of the symbol are often interpreted as representing duality and balance: light and dark, masculine and feminine, breathing in and breathing out. Where the loops meet at the centre — that single crossing point — is where the two become one. It's a beautiful piece of geometry when you think about it.
For that reason, an infinity necklace makes a particularly meaningful gift between two people: a couple, close friends, a mother and daughter. It says we are connected, and that connection doesn't end.
Infinity necklaces collection >>
The Infinity Cross
 Silver Infinity Cross Pendant with CZ |
For those with a faith element to their jewellery choices, the infinity cross is a variation worth knowing about. It combines the Christian cross with the infinity symbol to represent the eternal, unending love of Christ — no beginning, no end.
It's a design that has grown steadily in popularity and works beautifully in both silver and gold. You'll find a range of religious and symbolic jewellery at Carathea if this is the direction you're looking for.
Infinity Bracelets and Rings
The infinity symbol travels well beyond the necklace, of course. Infinity bracelets tend to feature the sign laying sideways across the wrist — either as a pendant-style charm on a chain bracelet, or worked directly into the band itself. Gold-plated versions have a particularly luxurious feel without the price tag.
Infinity rings are another customer favourite — and one of the reasons they work so well is the openwork design. That continuous looping form means the ring looks delicate and light on the finger, even when it's set with stones. Diamond-set infinity rings in gold are particularly striking.
The Ouroboros: The Ancient Ancestor of the Infinity Sign
Long before Wallis put the lemniscate on paper, ancient cultures had their own version of the same idea. The Ouroboros — a snake devouring its own tail — was one of the oldest symbols of infinity known to humanity.
Originally drawn as a simple circle, it represented the endless cycle of life, death and renewal. Over time, the Ouroboros evolved visually into a sideways figure-of-eight, and it's thought to be one of the symbolic ancestors of the infinity sign we use today. You'll occasionally see Ouroboros designs in jewellery — usually as a ring or pendant — for those who want a symbol with real ancient depth behind it.
The Double Infinity Symbol
Take two infinity signs and weave them together, and you get the double infinity symbol — and it's become a design in its own right.
Where the single infinity sign speaks of one unending bond, the double version evokes two lives or souls intertwined. It has a natural visual affinity with Celtic knotwork, and Celtic jewellery has always had a loyal following for exactly this kind of layered meaning. The design has become particularly popular in both jewellery and tattoos for this reason — it captures that sense of two people who are genuinely, permanently woven together.
Diamond-set double infinity necklaces, often in rhodium-plated sterling silver, are some of the most beautiful expressions of this design.
Personalised Infinity Jewellery
One of the most popular variations we see is the personalised infinity necklace — where names, initials or dates are incorporated into the loops of the sign itself. Typically crafted in sterling silver, these are the kind of pieces people keep for life. If you're looking for a truly personal gift, it's hard to beat.
Infinity Jewellery as a Gift
Because of what the symbol represents, infinity jewellery tends to be at its most meaningful as a gift for someone you want to say something lasting to. It's a popular choice for:
- Anniversaries — particularly milestone ones
- Valentine's Day — for the obvious reasons
- Friendships — "best friend" jewellery with real staying power
- Mother and daughter gifts
- New beginnings — the start of something that will last
If you're exploring other meaningful symbols in jewellery, our Meanings & Symbols collection is a good place to start. And if you're interested in jewellery symbols more broadly, you might enjoy our articles on evil eye jewellery meaning and circle of life symbolism.
Frequently Asked Questions About Infinity Necklaces
What does an infinity necklace mean as a gift? An infinity necklace typically symbolises eternal love, loyalty, or an unbreakable connection — making it a meaningful gift for a partner, close friend, or family member. It's a way of saying "this bond doesn't end."
Can you wear an infinity necklace every day? Absolutely. Sterling silver and gold-plated infinity necklaces are designed for everyday wear. If you're wearing sterling silver regularly, it's worth knowing how to care for it — take a look at our guide on how to clean and store your jewellery.
What's the difference between the infinity symbol and the double infinity symbol? The single infinity sign (∞) represents an unending bond or love. The double infinity symbol — two infinity signs interlocked — is often interpreted as two people or souls entwined together, making it a particularly popular choice for couples or close pairs.
What metal is best for an infinity necklace? Sterling silver is the most popular choice, offering a clean look at an accessible price point. Gold — whether yellow, white or rose — adds warmth and longevity. If you're unsure about metal choices, our guide on what is white gold and our piece on gold plated jewellery can help you decide.
Is an infinity necklace appropriate for a religious person? Yes — particularly the infinity cross variation, which combines the Christian cross with the infinity symbol to represent eternal faith and the love of Christ. Browse our religious jewellery collection for options.
Sources: BBC.com
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