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Quick summary
Pearl restringing is needed when you can see bare thread, loose knots, frayed or darkened silk, or a strand that hangs longer than it should.
- Silk stretches and takes up moisture from skin and perfume, weakening long before you notice anything wrong.
- The stretch test and the gap test let you check a strand at home in seconds.
- A break at the clasp on a knotted strand usually costs a pearl or two; a break on unknotted thread can scatter the lot.
- Pearls should be stored flat in a pouch, never hanging, so the silk carries no weight.
- Bring a strand in when the signs appear, rather than waiting for a set number of years.
How to tell a strand is ready for pearl restringing
Pearl restringing is the process of taking a strand apart and rethreading it. At Griffin & Co, that work happens at our bench in Chichester.
Silk stretches. Knots loosen. The thread between pearls picks up moisture and dirt from skin and perfume, and it weakens long before you notice anything wrong.
Below are the signs to check for at home, and what the work involves when a strand comes in.
The stretch test and the gap test
Two simple checks tell you most of what you need to know.
The stretch test: hold the strand at both ends and let it hang. A healthy strand hangs in a soft, even curve. If it drops straight or looks longer than you remember, the silk has given up.
The gap test: lay the strand flat on a dark cloth and look between the pearls. You should see a small, tidy knot sitting snugly in each gap. If you can see bare thread, or the knots have worked loose and sit off-centre, that is your answer.
Run your fingers gently along the strand too. Any fraying, fuzziness or darkening on the thread means it is time.
Seven signs your pearls need restringing
Check a strand in good light, near a window, and look at these in order.
- Visible bare thread between two or more pearls.
- Loose knots that have slipped out of position.
- A stretched or sagging strand that hangs longer than it should.
- Frayed or darkened silk near the clasp, where wear concentrates.
- A gap at the clasp where the thread has relaxed.
- Pearls that rotate freely instead of sitting snugly against their knots.
- A strand worn weekly that has not been restrung in several years.
If you spot three or more of these, stop wearing the strand until it has been looked at.
Watch out
A break at the clasp on a knotted strand usually costs you one or two pearls. A break mid-strand on unknotted thread can scatter the lot across a car park.
How often should pearls be restrung?
There is no fixed interval that suits every strand. A necklace worn often, against skin and under perfume, will need attention sooner than one worn for occasions. The right moment is when the signs above appear, not when a particular number of years has passed.
Silk is the traditional choice because it is soft against the pearl and holds a knot well. It is also a natural fibre, so it absorbs moisture and gradually loses strength. That is not a fault, just how the material behaves.
A few things shorten the interval:
- Wearing the strand against bare skin in warm weather
- Perfume or hairspray applied while the necklace is on
- Storing the strand hanging, which puts weight on the silk
- A clasp that catches or has a sharp edge
If any of those apply, have the strand looked at sooner rather than later. It costs nothing to ask.
How we restring pearls in the workshop
You can read more about our jewellery repair service, which covers the rest of the bench work we do.
The materials matter more than people expect.
Silk, knots and the tools involved
Knotting between pearls is not decoration. It stops pearls rubbing against each other, which over the years would wear the nacre where they meet, and it means a broken thread only ever releases one pearl rather than all of them.
A restring is straightforward in principle and patient in practice. The pearls come off the old silk and go back onto new silk, with a fresh knot tied between each one, matching thread colour and pearl size so the finished strand sits as it should. A clasp that has weakened can be replaced at the same time.
Like all our repairs, a restring finishes with a professional clean and polish. Book a consultation and we will look at the strand with you first.
Pearl necklace repair beyond restringing
We offer remodelling and resetting of heirloom pieces. Our guide to restoring an heirloom explains what restoration can bring back and what it cannot, and there is more on remodelling inherited pieces.
If a pearl has been lost along the way, bring the strand in and we will talk through the options before any work starts.
Pearl clasp repair and choosing the right fastening
The clasp takes more wear than any other part of a strand. It is opened and closed every time you put the necklace on, and it carries the full weight of the pearls.
A few fastenings and who they suit:
| Clasp type | Best for | Watch out for |
|---|---|---|
| Lobster claw | Everyday strands | Spring can weaken over time |
| Bolt ring | Heavier strands | Needs a firm push to seat |
| Box clasp | Fine, dressy strands | Small parts can bend |
| Magnetic clasp | Anyone with limited hand strength | Can release under load |
| Pearl clasp | Traditional pearl strands | Needs careful handling |
Caring for a strand after restringing
Fresh silk deserves a little care, and it will reward you with years of wear.
- Put pearls on last, after perfume and hairspray
- Wipe the strand with a soft dry cloth after wearing
- Store it flat in a pouch, never hanging
- Keep pearls away from direct heat and sunlight
- Look the strand over once a year, and sooner if it is worn often
Wearing pearls regularly is good for them. Silk and pearl both benefit from a little natural moisture from the skin, so a strand worn often will usually outlast one left in a drawer. Our necklace length guide helps you work out where a strand sits and how to layer it with other chains.
Book a pearl restringing consultation
Pearls are patient, but silk is not. If your strand is showing any of the signs above, the kindest thing you can do is have it looked at before it decides for you. You can book a private consultation in the showroom at 64 South Street, Chichester, or by home visit across West Sussex, Hampshire and Surrey.
While you wait, you can browse pearl necklaces to buy or compare against your freshly restored strand.
We are a member of the National Association of Jewellers, and we are rated 5-star with 52+ reviews.
Frequently asked questions
How do you know when a pearl necklace needs restringing?
Look for gaps appearing between the pearls when the strand hangs, a thread that has stretched or frayed, and knots that have worked loose. If the necklace no longer sits flat, or you can see the silk between pearls, it is time for pearl restringing. A strand that has not been restrung in several years is also worth checking, even if it looks fine.
Can you restring a pearl necklace yourself?
You can buy silk and a needle, but knotting evenly between every pearl takes practice, and a loose knot or uneven tension can cause the strand to fail. For anything with sentimental or monetary value, pearl necklace repair at our bench is the safer route. We match thread colour and pearl size so the finished strand sits as it should.
Can a clasp be reused when restringing pearls?
Often yes, if it is sound and suits the strand. We check the tongue, spring and hinge, and we can replace a worn fitting or change to a more secure fastening. Tell us what you would like when you bring the piece in, and we will advise on what will hold up to daily wear.
How should you care for a pearl necklace after restringing?
Put pearls on last and take them off first, away from perfume and hairspray. Wipe them with a soft dry cloth after wearing, store them flat in a pouch rather than hanging, and have the strand checked periodically. Avoid soaking pearls in water, and bring the necklace in if you notice any slack in the thread.