Adamas Gemduo substitute by Cymbals, pack of 10 pieces
This is a listing for Cymbal metallic elements called Adamas, a Gemduo bead substitute. These have two holes as well and can be used in place of a Gemduo or diamonduo.
The listing gives you the option of choosing either 24k gold plated or antique silver plated. Each pack contains 10 pieces.