To start, choose your thread and your beads.

To block the bead(s), make a first simple knot towards the center of the bracelet. Thread the bead(s) then stick a pin into the thread at the edge of the bead.

Make a simple knot around the pin, tighten the knot and remove the pin at the last moment. This way your knot will be perfectly placed in the right spot!

Now cross the threads to form the bracelet.

Here the difficulty will be to place the knots in the right place, symmetrically to each other. Indeed, when you tighten the knots they can move a little. For this, first test the technique on a test cord by making large loops to fully grasp the method then on your real creation, make the loops as small as possible. This way the knots will be placed in the desired locations.

Follow the diagram below to understand the method. Here we used 2 colors for better understanding but in reality it's the same thread crossing.

Beautiful creation!