This necklace was purchased in North Africa some years ago. It is 28", with robin's egg or aqua ceramic beads, hollow silver toned beads and aqua blue glass bead spacers.
The silver colored beads are probably a low grade silver as frequently used in ethic jewelry of the region.
There is no clasp, but the necklace slips easily over the head. The silvery beads show some wear. The blue beads are in excellent condition.