I have used silver and gold neck wires to attempt the same effect, but they look too "skimpy" with large or heavy beads & pendants. The more substantial wrapped rod is perfect for the task! Congratulations on this artistic / technical achievement, which I will copy at my earliest opportunity!
Exactly - it is tricky to show a single favourite bead. What you did here looks rather nice, since it gives the "magical" Morfia enough room to breath!
Still - unless the bead were chipped at either end - I would not cover top or bottom. No problem for most other beads to do so, but in this specific case I would not.
Don't get me wrong: It is fine as it is!
My husband said, "oh, wow" when he saw your necklace. We both think it is a great idea and so nice looking!