Silver round bezels, 12mm and 16mm have a blue opalescent background and are filled with silver leaf-saturated clear resin.  The earrings use stainless steel fishhook earwires and are 1.5" 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.