The earrings use three round gold bezels, two 12mm and one 16mm, all filled with opalescent red marbled clay and then sealed with resin.  The earrings use gold-plated leverback earwires and are 2.25" 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.