A perfect choice for yourself, or as a gift, our Opal stud earrings feature sturdy cast basket settings and beautiful sparkling gems. Opal is a treasured gem all over the world. A symbol of hope, purity, and love, opal earrings make an elegant and luxurious gift. A pair of emerald earrings are a timeless and classic accessory. You can choose from genuine emerald, or more affordable lab-created emerald.