This piece is, again, supposed to be Japanese. The black beads are hollow seeds as far as I can tell and the sides have been sanded down flat. They're about 6 mm across. There are also some 4 mm seeds that look identical only smaller.
The blue beads may be turquoise and the orange may be carnelian but I am not familiar enough with either to be sure.
Literally any help would be welcome with this one. I don't know how you guys do it but you have all been a massive help thus far and I am so so grateful.