Features: Quick Ship Earring Back: Hinged Setting: Prong Stone Cut: Round Metal Color: White Earring Length: 30mm Earring Width: 3mm Care: Wipe Clean Stone Type: 22 Lab Created Opal Authenticity: Lab Created Stone Birthstone: October Birthstone Earrings Type: Post Earrings Earrings Style: Solitaire Earrings, Hoop Earrings Metal: Sterling Silver Country of Origin: Imported Metal may be rhodium plated to enhance appearance and reduce tarnishing. Quick Ship items ship directly from the manufacturer within 3 to 5 business days. Photos are enlarged to show detail.