Bring elegant and charming color to any look with these lab-created opal and white lab-created sapphire outer edge stud earrings in yellow gold over silver. Fashioned in 18k gold over silver each earring glistens with an 8. 0mm iridescent lab-created opal cabochon. White lab-created sapphires adorn the double-row outer edges with shimmer. These post earrings secure comfortably with friction backs.