0.75" long antique silver Star Trek com badges hang beneath 8mm sky blue crystals sitting inside round silver-plated bezels.  The earrings use silver-plated fishhook earwires and are 1.25" 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.