The I Cord Tripleknot Necklace: Free Knitting Pattern You’ll Reach For Again and Again

There is something quietly magical about transforming a simple length of knitted cord into something elegant enough to wear out to dinner. The I Cord Tripleknot Necklace is exactly that kind of project — humble in its construction, yet striking in its final form. If you have ever dismissed i-cord as too basic or too utilitarian to be interesting, this pattern is going to change your mind completely.

This free knitting pattern walks you through creating a beautiful, knotted necklace using nothing more than a short knitted tube, a bit of patience with the knotting technique, and whatever yarn speaks to your style that day. Whether you are a seasoned knitter looking for a quick and satisfying weekend project, or a newer knitter ready to move beyond scarves and dishcloths, the I Cord Tripleknot Necklace is the kind of pattern that delivers a serious payoff for relatively modest effort.

Let’s dive deep into everything you need to know — the materials, the method, the finishing, and some creative variations to make this necklace entirely your own.

What Is an I Cord and Why Does It Work So Well for Jewelry?

Before jumping into the pattern itself, it is worth taking a moment to appreciate the humble i-cord. An i-cord (sometimes written as idiot cord, a playful name coined by Elizabeth Zimmermann, who loved both knitting and a good sense of humor) is a small, tubular length of knitting worked on double-pointed needles or a very short circular needle.

The technique involves casting on a small number of stitches — typically between two and five — on a double-pointed needle, knitting across, and then, instead of turning your work, sliding the stitches back to the other end of the needle and pulling the working yarn across the back to knit the row again. Over time, the knitting curls around itself and forms a smooth, rope-like tube. It is tidy, it is satisfying, and it produces a cord with a lovely rounded cross-section that looks nothing like flat fabric.

For jewelry, this quality is invaluable. A knitted i-cord has just enough structure to hold its shape without being stiff, enough flexibility to drape beautifully around the neck, and enough texture to grip a knot and keep it in place. The triple knot at the center of this necklace is the star of the show, and the i-cord is the perfect vehicle to deliver it. The knots nestle together in a way that looks deliberate and designed, almost architectural, yet the whole necklace remains lightweight and wearable all day.

Materials You Will Need

One of the great joys of this project is how accessible it is. You do not need anything exotic or expensive to make a gorgeous I Cord Tripleknot Necklace.

Yarn: This pattern works beautifully in a wide range of yarn weights, but the most common and most recommended choice is a fingering weight or light DK weight yarn in a smooth, plied fiber. Smooth yarn shows the structure of the knots most clearly. Silk blends, cotton, linen-cotton blends, and fine merino wool all produce excellent results. Avoid very fluffy or hairy yarns like mohair for your first attempt, since the halo will obscure the lovely definition of the knots. You will need only a small amount — roughly 25 to 50 yards, depending on the length of necklace you want — which makes this an ideal project for using up precious leftovers from other projects.

Needles: You will need a set of double-pointed needles in a size appropriate to your chosen yarn. If you are using fingering weight yarn, size US 1 (2.25mm) or US 2 (2.75mm) is typical. For light DK, size US 3 (3.25mm) works well. The goal is a slightly tighter gauge than you might use for a garment, which gives the cord a firm, rope-like structure that knots beautifully.

Notions: A tapestry needle for weaving in ends, scissors, and optionally a necklace clasp and a few inches of thin chain or ribbon if you prefer a clasp closure over a tied finish. Small jump rings and jewelry pliers are helpful if you go the clasp route.

Gauge and Sizing

Because this is a jewelry project and not a garment, gauge is more about feel and aesthetics than precise fit. A tighter i-cord produces a firmer, more structured necklace. A looser cord is softer and more fluid. Swatch a short length and see how it knots — if the knot looks full and rounded and holds its shape, your gauge is working.

For sizing, the pattern below produces a finished necklace of approximately 18 to 20 inches, which is a classic necklace length that sits just below the collarbone. If you prefer a longer, more boho pendant-style necklace, simply work additional inches of i-cord before beginning the knotting section. A 24-inch cord will give you a lovely long necklace. A 16-inch cord creates a closer-fitting choker-adjacent style.

The key measurement to keep in mind is that you need enough cord length to form three overhand knots comfortably plus a few inches on either end for finishing. In practice, most knitters find that a cord of 30 to 36 inches before knotting finishes down to a wearable necklace length in the 18 to 22 inch range, since the knots consume some length.

The Pattern

Step One: Cast On

Using your double-pointed needles, cast on 3 stitches. A cable cast-on works well here and gives a tidy edge, but a long-tail cast-on is also perfectly fine.

Step Two: Work the I Cord

Knit across the 3 stitches. Do not turn your work. Instead, slide the stitches from the right tip of the needle back to the left tip (or if you are using double-pointed needles, simply slide them to the far end of the same needle). Pull the working yarn firmly across the back of the work and knit the 3 stitches again.

Repeat this slide-and-knit action continuously. After just an inch or two, you will see the cord beginning to form, the edges pulling together into a smooth tube. Continue until your cord measures approximately 32 to 34 inches, or your desired length accounting for knotting.

One important tip: keep your tension consistent, especially when pulling the yarn across the back. An even tension is what creates that smooth, professional-looking rope. If you find the yarn loops across the back are too loose, try pulling a little more firmly as you begin each row. If the cord is puckering or the stitches feel very tight, ease up slightly.

Step Three: Bind Off

When your cord is the length you want, bind off the 3 stitches. A simple knit bind-off works perfectly. Leave a tail of about 6 inches at each end for finishing.

Step Four: The Triple Knot

This is where the necklace transforms from a simple cord into something special. The triple knot is made by tying three overhand knots close together at the center of the cord, so they nestle against each other and form a cluster that looks intentional and sculptural.

Find the center of your cord. Fold the cord in half to locate the midpoint and mark it lightly with a stitch marker or a small piece of scrap yarn.

To make the first knot, make a loop in the cord at the center, pass the end of the cord through the loop, and gently tighten. Do not pull too tight yet — keep the knot loose and adjustable until all three knots are formed.

Move about half an inch to the right of the first knot and form a second overhand knot in the same way. Then move about half an inch to the left of the first knot and form the third knot.

Now comes the satisfying part: gently position the three knots so they are touching and nestled together in a small cluster, and begin tightening them one at a time, easing each one into its final position before pulling snug. The goal is a compact, tidy group of three knots that sits neatly at the center of the necklace.

The i-cord’s natural structure grips the knots beautifully — unlike smooth cord or chain, knitted fiber has just enough texture to keep everything in place.

Step Five: Finishing

How you finish the ends of your necklace is largely a matter of personal preference.

The simplest finish is to leave the ends free and tie the necklace around your neck in a bow or a simple knot at the back. This gives the piece a casual, artisan feel and means it is infinitely adjustable in length. You can use the tail ends to tie it, or weave in the tails and add a short length of ribbon or thin cord to the ends for tying.

For a more polished, jewelry-style finish, you can attach small end caps to the tips of the cord using strong jewelry adhesive, then connect a lobster claw clasp and a short length of chain on one end (which allows length adjustment). This finish makes the necklace look more like purchased jewelry and is particularly lovely if you are making it as a gift.

If you choose to simply weave in the ends, use your tapestry needle to thread the tail through the interior of the i-cord tube for about an inch, then bring it back out and snip close to the surface. The woven-in tail will disappear inside the tube and the cord end will look seamless.

Tips for Perfect I Cord Every Time

Working i-cord is one of those techniques that feels a little awkward for the first inch or two and then suddenly clicks. Here are a few things that will help smooth the learning curve.

Always slide stitches back to the right end rather than turning the work as you would for flat knitting. This is the single most important step. If you turn the work, you will end up knitting flat rather than round, and the tube will not form.

Pull your working yarn snugly but not brutally before knitting the first stitch of each row. That firm pull across the back is what draws the sides of the cord together and creates the tube shape.

Count your stitches every inch or so, especially at first. It is easy to accidentally increase by knitting into the yarn float across the back rather than just pulling it taut.

Keep a consistent rhythm. I-cord is wonderfully meditative once you get going, but if you are distracted and start turning your work or losing your place, the cord will show it. Put on a podcast, sit somewhere comfortable, and let your hands settle into the rhythm.

Yarn Variations and Style Ideas

The I Cord Tripleknot Necklace is as versatile as the materials you choose for it.

For a luxurious, dressy look, try a fine silk or silk-blend yarn in a deep jewel tone. Emerald, burgundy, and navy all look stunning, and the slight sheen of silk gives the knots a high-end quality that is genuinely beautiful.

For a casual, bohemian vibe, a natural linen or cotton yarn in an undyed or earthy tone is perfect. The matte texture and organic color feel right at home with linen shirts and summer dresses.

For something a little glam, try a fingering weight yarn with a subtle metallic thread running through it. Gold or silver metallic yarn gives the necklace a sparkly, party-ready look without being over the top. These yarns can be slightly slippery to work with, so slow down a little and keep your tension firm.

For a bold, graphic statement, use a dark yarn for the cord and add a single large bead to the center section before tying the knots. The bead becomes framed by the three knots on either side and creates a completely different look — more like a pendant necklace than a knotted one. Make sure the bead has a hole large enough to thread the cord through.

You can also experiment with the number of cast-on stitches. Three stitches produces a slim, delicate cord. Four or five stitches creates a chunkier cord with bigger, bolder knots. With a bulkier yarn and four stitches, you can make a statement necklace with real visual weight.

Making It as a Gift

The I Cord Tripleknot Necklace is an exceptional handmade gift. It is personal without being presumptuous — unlike a garment, there is no sizing to worry about, and the adjustable length means it will fit almost anyone. It is quick enough that you can make one in an afternoon or evening, yet it looks far more time-intensive than it is, which is always a satisfying quality in a gift.

Pair it with a small card noting the fiber content and care instructions (most knitted jewelry does best with gentle hand washing in cool water and laying flat to dry). Tuck it into a small jewelry box or wrap it around a piece of card stock for display. If you want to make it extra special, make matching necklaces in coordinating colorways for a best friend, a sister, or a bridal party.

Caring for Your Knitted Necklace

Because the necklace is made from fiber rather than metal, it requires a little more care than a standard piece of jewelry, but not much more.

Hand washing in cool water with a gentle wool wash or baby shampoo is the safest approach. Gently squeeze out excess water without wringing, then roll the necklace in a clean towel to remove more moisture, and lay flat to dry. Avoid hanging the necklace while wet, as the weight of the water can stretch the cord.

Store the necklace loosely rather than wadded up in a drawer. Hanging it on a small jewelry hook or laying it flat in a box keeps the knots looking their best and prevents unnecessary stretching or tangling.

If the knots begin to loosen over time, you can simply re-tighten them with your fingers. The i-cord fiber grips itself, so a little gentle coaxing is usually all it takes to restore the look.

Why You Will Keep Coming Back to This Pattern

In a world of complicated patterns with long stitch counts and intricate colorwork, there is real value in a pattern that is simple, beautiful, and endlessly adaptable. The I Cord Tripleknot Necklace earns a permanent place in your project rotation because it asks very little from you technically and gives you a great deal in return aesthetically.

It uses scraps. It works up quickly. It makes a wonderful gift. It can be casual or dressy depending on your yarn choice. It is the kind of pattern you make once, love, and then make seven more times in different colors because you want one for every outfit and three to give away.

Cast on a length, settle into the soothing rhythm of the slide-and-knit, tie your triple knot with care, and you will have a piece of wearable handmade art that costs almost nothing and delights almost everyone who sees it. That, in the end, is exactly what the best knitting patterns do.