Hello Mrs S!
If this is the same design, here is a pic from a Japanese site showing the three cords braided together, forming a belt.
http://www.e-brand.co.jp/item.php/detail/372
Enjoy your belt!! It's gorgeous!
I vaguely decipher "KISU" in Katakana on the webpage but maybe the buckle isn't the same size though?
Thank you very much, boudoir for posting that link.
I braided the 3 cords of mine and TA DA!
This belt is really so versatile!