Features: Nickel Free, Quick Ship Earring Back: Post Setting: Prong Stone Cut: Cushion Stone Millimeter Measurement: 8 Mm Length, 6 Mm Width Metal Color: White Earring Length: 9mm Earring Width: 6mm Stone Treatment: Dyed Care: Wipe Clean Stone Type: 2 Genuine Onyx, 2 Genuine Topaz Authenticity: Genuine Stone Earrings Style: Stud Earrings Metal: Sterling Silver 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.