I've seen the pattern for this necklace several times on Ravelry, and I really like it. The tutorial is fantastic, and the necklace is easy to construct. I didn't have a needle small enough to make it through the smaller seed beads, so I just used a needle threader. It's a little slow, but it works well. I'm pleased with the finished product.
I worked the closure with a magic ring instead of the 12ch loop in the pattern. That way I could adjust it to fit the button I managed to find.
My version is worked in Ecru DMC Traditions Crochet Cotton in size 10 with a size 7 steel hook.
The larger beads are size 6/0 glass beads in a pearl color, and the smaller beads are size 11/0 glass seed beads that are clear with a little silver inside.
Beyond that, I used a needle threader, a button, and a needle to weave in the ends. It's as simple to make as it is to wear.