When we were in Istanbul last year, I went looking for turquoise – a sort of nominal determinism since the mineral is named after the country. I found these two strings, and have made clasps for them. Ironically, the turquoise actually comes from Iran. The Turkish turquoise that I saw was darker and greener.
I’ve just got them back from a woman who knotted them for me, and she did a good job, so that the whole thing articulates smoothly.