Antique imitation dZi beads made from glass and an imitation 

nine eye dZi bead (ceramic). Sourced in Nepal.  

Smallest bead 15.19 mm x 13.40 mm

Ancient rock crystal bead. Sourced in Nepal. 15 mm

Ancient faceted rock crystal bead. Sourced in Nepal. 13.75 mm x 11.25 mm

An ancient agate eye bead (convex shape on both sides). Western Asiatic. This bead has no noticeable crystalline banding that forms an eye, nor has it been decorated with an eye design. So in this case it is the shape of the bead that indicates it as being an eye amulet. James Lankton places a similar bead (no.208) on his timeline and dates it to around 4000 BCE. 30 mm x 25 mm x 10 mm