Features: Nickel Free, Quick Ship Earring Back: Friction Setting: Prong Stone Cut: Round Stone Millimeter Measurement: 5 Mm Length, 5 Mm Width Metal Color: White Earring Length: 8.3mm Earring Width: 8.5mm Care: Wipe Clean Stone Type: 10 Genuine Blue Topaz, 112 Genuine Topaz Authenticity: Genuine Stone Birthstone: December Birthstone Earrings Style: Hoop Earrings, Huggie 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.