A fine-gauge stainless steel wire, with amethyst-colored firepolished beads dangling from the choker and earrings.  Bracelet to match.  It's a very light, delicate set, pretty enough for a young princess but more durable (and less costly) than sterling silver.

19 ga 1/4" and 3/16" ID
Stainless steel
In the Half Persian 3:1 weave.