Features: Quick Ship Earring Back: Post Setting: Prong Stone Cut: Oval Stone Millimeter Measurement: 8 Mm Length, 6 Mm Width Metal Color: White Earring Length: 11.5mm Earring Width: 9mm Care: Wipe Clean Stone Type: 2 Genuine Blue Topaz, 36 Lab Created Sapphire Authenticity: Genuine Stone Birthstone: December Birthstone 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.