With their brilliant faux-ple crystals, these beautiful stud earrings will add a pop of blue to your everyday looks! The cubic zirconia have a spherical shape to mimic true opal gemstones and each measure 3mm. They are placed in cup settings at the front of a set of sterling silver earring pins measuring 14mm. The studs are supplied as a pair with their matching butterfly backs and weigh 4 grams in total.