Yes, if you're looking for clear,
non-stretchy cord,
Supplemax is very nice. It comes in 2 sizes: .25mm and .4mm. I would suggest .4mm for stringing pearls for illusion necklaces, and the the .25mm (#61-480) for beadweaving and beaded beads. Both sizes are flexible and knot well.
For clear
stretchy cord,
Stretch Magic is a good product.