How to make a polymer clay necklace

Get rolling and twisting Dorothy Wood’s striking faux marble pendant! She shows you how to make a polymer clay necklace so you can start your jewellery-making journey.

How to make a polymer clay necklace

If you haven’t tried working with polymer clay before, get ready for a seriously fun project. Dorothy Wood is here to show you how to make a polymer clay necklace! With some rolling and twisting, you can create gorgeous on-trend marble effect jewellery. We’ve given one example of a shape and design, but you can also try simple rectangles or shields in different colours too. If you’re a little daunted by the prospect of working with clay don’t worry. We have a beginners guide to poylmer clay to teach you all the basics. It’s a really simple medium and we know you’ll get hooked as soon as you’ve made Dorothy’s necklace. Once you’ve got the clay bug then head over to our clay salt spoons and clay trinket dish DIY.

You will need: 

  • Polymer clay in white, black and grey
  • Flat cord end with loop, 0.7 x 2.5cm
  • Gold curb chain 50cm (19 3/4″)
  • Jump rings, two 4mm and two 6mm
  • Lobster clasp
  • Mini rolling pin
  • Acrylic block or ceramic tile
  • Pin
  • Cutting blade or knife
  • Ruler
  • Fine sandpaper
  • Jewellery tools (head to our jewellery making supplies blog to find all the essential tools)

How to make a polymer clay necklace


You Will Need

  • Clay
  • Jewellery making tools
  • Jewellery making accessories
  • Rolling pin
  • Metal ruler
  • Sandpaper
  • Cutting knife

Total time:

Step 1

Marble pendant 1

Cut a piece of clay from each block in similar proportions to those shown, then cut a second piece of white clay to add later. Condition the clay by kneading in your clean hands, beginning with the white, until soft. Roll each piece of clay to the same length between your hands until it forms a long sausage, no thinner than 7-8mm (1/2″). Twist the sausages together to create a rope effect.

Step 2

marble pendant 2a

Roll the twisted rope out again and then fold in three. Twist together again to create another rope and then roll once more. Repeat until the lines of clay are beginning to blend. It takes practise to get exactly the right effect, but don’t over mix and allow it to turn all grey.

Step 3

To create the marbled effect, add more white. Roll out the spare piece of white and twist together with the mixed clay sausage. Repeat the rolling/twisting process once or twice until you have an effect you’re happy with.

Step 4

marble pendant 4

Smear a little Badger’s Balm or Vaseline onto the acrylic block or ceramic tile to prevent the clay from sticking. Bend the clay sausage into an S shape and begin to roll out. Measure the internal depth of the flat cord end, then stack two piles of playing cards to the exact same height on either side of the clay so you can roll it to precisely the right thickness.

Step 5

Measure and mark the pendant shape using a pin. Depending on the size of the rolled clay you can cut several pieces and make multiple necklaces, or choose your favourite pattern once baked. Cut a rectangle 2cm (.”) wide and 4.5cm (17/8“) long using a straight blade. Mark the centre point at the bottom and 1cm (3/8“) up each side. Cut the angle and remove any excess. Place the clay pieces in the fridge for half an hour to firm up.

Step 6

marble pendant 6

Carefully lift the pieces onto a foil-covered oven proof sheet or, if you used a ceramic tile, place directly into the oven. Bake the clay for 15 minutes at about 100- 130C/ 275F/ gas mark 1 (lower on a fan oven). As it cools, make sure the tip doesn’t curve by placing a light weight on top. Once cool, rub the edges with fine sandpaper, put strong glue into the end cap and push the clay shape inside. Once dry, attach a large jump ring and slot the chain through. Attach a lobster clasp to one end and a large jump ring to the other end of the chain.


Necklace complete! We hope you enjoyed learning how to make a polymer clay necklace. For more clay projects head to our clay vase DIY and our DIY coasters.