Burmese decorated agate BD162
Decorated barrel-shaped agate bead of the proto-pumtek type.
Pyu city-states/Tircul, Burma.
For details about this type of beads, here is a Jamey Allen essay about Burmese ancient beads.
Here is an interesting page on the Pyu of Burma the Pyu of Burma and a general assessment of the ancient beads of Burma.
Circa first millennium CE.
14 mm long.