Hi Hendrik,
Your necklace is stunning! I wish mine looked like that :)

The beads I posted, the two fancy ovals, are from different necklaces. The wedding cake bead I bought was and is strung on this strand of beads, probably not an original but a collection of some pairs and loose beads.
(Picture 1)

The other fancy, with aventurine and blue/white dots, is from the necklace on the second picture. The necklace also features some small amber-imitation beads (I believe), four black cube-rounded beads with aventurine and four small beads with chevron-murrines, these beads have a matte finish