Tubular Herringbone With Cubes

I made this beautiful tubular Herringbone necklace and bracelet with:
3mm cubes no. 451 (25g)
11/o Miuki seed bead no. 21 (10g)
Clasp
FireLine size D
Needle size 12

I used this diagram to make the necklace and bracelet, but I did 3 rows and not 2 as shown in the diagram.