What is knotting in jewellery?
By Jared James · Last updated 21 May 2026
Definition
Knotting is the technique of tying a small, tight knot in the thread between each pearl or bead on a strung necklace or bracelet. The knots serve two purposes: they stop the pearls rubbing against each other and wearing away their nacre over time, and they mean that if the thread ever breaks, only one pearl falls loose rather than the whole strand scattering. Pearl necklaces are almost always knotted for this reason, and the knots also add a gentle spacing that lets the pearls sit and move naturally.
Frequently asked questions
- Why are pearls knotted on a necklace?
- Each knot keeps adjacent pearls from rubbing against each other, which would gradually scratch and damage the soft nacre surface. The knots also act as a safety measure so that if the thread snaps, you lose at most one pearl rather than all of them.
- Does knotting between pearls add length to a necklace?
- Yes, a little. Each knot takes up a small amount of thread, so a fully knotted strand will be slightly longer and sit slightly differently to an unknotted one. Jewellers account for this when designing the finished length.
- How often does a pearl necklace need to be re-knotted?
- A good quality pearl necklace should be re-strung and re-knotted every few years, or sooner if the thread looks stretched, discoloured or loose. Regular wear and contact with body oils and perfume weakens the thread over time.
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