8mm round black crystals sit on top of a silver-plated filigree bead cap.  A black crystal spacer is placed on top of the crystal with a 6mm silver spacer bead.  The earrings use silver-plated fishhook earwires and are 0.75" long.  
 
All metal used is hypoallergenic, nickel-free, and is sterling silver, silver or gold plated or stainless steel unless noted otherwise. Every item is handcrafted, custom-made, nothing mass-produced.