Features: Nickel Free, Quick Ship Earring Back: Post Setting: Prong Stone Cut: Round Stone Millimeter Measurement: 2.3 Mm Width Metal Color: White Earring Length: 12.9mm Earring Width: 12.9mm Care: Hand Wash Stone Type: 140 Lab Created Sapphire Authenticity: Lab Created Stone Metal: Sterling Silver Earrings Style: Stud Earrings Country of Origin: Imported Gemstones may be treated and may require special care. 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.