These perfectly matched Princess-cut Clear Simulated Diamonds are secured in black ion plated surgical grade steel prong setting with butterfly backs, suitable for pierced ears.  
 
They come in many sizes, purchase several pairs to layer different sizes on multiple piercings.
 
Specifications
Stone Type: Simulated Diamond
Stone Colour: Black
Setting: Prong
Finish: Black Ion Plated
Base Material: Surgical Steel