String of 12 Eye Beads - Public domain museum image. A necklace made of blue and white glass beads

Mosaic glass beads had long been popular in Egypt. The period of large intercontinental empires beginning about 500 BC initiated a period of widespread trade of these small items. These are all modern stringings; most ancient stringing patterns are lost as the string decays.
From Egypt
Late Period–Ptolemaic Period