To make this necklace you will need:

You Will Need

0.315 Rose Gold Wire F200
0.50mm Rose Gold Wire
2  strings of freshwater seed pearls 
approx 50 grey crystal cushions
2 Long Rose Gold Ends Caps F408
1 Rose Gold Trigger Clasp F304
Some Rose Gold Jumprings F405
! Rose Gold Star Charm
Superglue

To Make

Take some 0.315 wire about 1.5 metres and begin twisting in the small seed pearls, continue to the end. Do this to about 5 or 6 strings. The more lengths you make the thicker your choker will become.
Do the same thing on 0.50mm wire 2 with the seed pearl/2 with with crystals.
Using one of the thicker wire strings you have made, concertina the wire to make a choker shape. As this wire is stiffer it will hold its form. Begin wrapping one at a time the rest of the strings and eventually you will have the basis of your choker.
Keep wrapping the ends as you go.
When you have finished wrapping in between finish the ends.
On your ends cut about 1cm from the end of the choker. Take one of the long end caps, apply some glue and slip neatly over the ends.
Add a trigger clasp and some jump-rings to the end and finish with a little charm so your choker is adjustable.