Gold plating over sterling silver Simple round white opal stud earrings set in gold vermeil Length: 3.9mm, Width: 3.9mm SPE-9289 (GV/OP16) White Opal Stud Earrings, Pretty Ear Piercings, Opal Stud Earrings, Opal Earrings Stud, Opal Studs, Silver Lights, Ruby Jewelry, Sparkle And Shine, Stone Studs