Pass needle and thread through either the 6mm below the 4mm you exited or the 4mm above the 6mm you exited. Pull snugly to secure the pendant.
Weave back through the necklace to repeat the thread path and secure the pendant to the front of the necklace.
To end the thread in the necklace, it is helpful to weave from the back of the necklace so that you will not have to move the pendant aside to see where the thread is. To do this, simply flip the necklace over and pull the needle and thread through the beadwork to the back of the necklace.
Knot the thread, add a drop of glue if desired, weave in a bit more and trim the thread close to the beadwork.

