Features: Quick Ship Earring Back: Lever Back Setting: Prong Stone Cut: Round Stone Millimeter Measurement: 5 Mm Length, 5 Mm Width Metal Color: Yellow Earring Length: 11.5mm Earring Width: 5mm Care: Wipe Clean Stone Type: 2 Lab Created Opal Authenticity: Lab Created Stone Birthstone: October Birthstone Earrings Style: Drop Earrings Metal: 10k Gold 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.