Large 6mm x 6mm opaque black onyx crystals are the focus of this pair of earrings.  The crystals sit upon a black shamrock headpin and hang on a 2.5mm silver-plated Figaro chain.  The earrings use silver-plated leverback earwires and are 2" long. 
 
All metal used is hypoallergenic, nickel-free, and either sterling silver, silver or gold-plated, or stainless steel unless noted otherwise in the description.  Every item is handcrafted and custom-made, nothing mass-produced.