Cut a 50 cm piece of thread. Thread a Seed beads bead and pass through it 3 times with your thread and needle, so that the bead is locked on the thread 10 cm from the end. Then thread the bead through the tip, from the outside to the inside. The bead previously threaded will block the tip and prevent it from slipping. Thread the rest of the beads, paying careful attention to the direction. It will be much easier to place your work on a flat surface such as a table or tray, rather than suspended in mid-air, as at first the beads will only rotate non-stop.
Remember to add a 15/0 Seed bead on each side of the Diamonduo. Once all the beads have been strung on one side of the bracelet, thread the second end piece and a seed bead. Return to your starting point, passing through all the beads except the Seed bead you've just threaded. Tie the two thread ends together with a double knot, then iron them a third time through the previous 3 beads to hide them and cut off the excess thread.