Features: Quick Ship Earring Back: Hinged Setting: Prong Stone Cut: Pear Stone Millimeter Measurement: 4 Mm Length, 3 Mm Width Metal Color: Yellow Earring Length: 38.5mm Earring Width: 3.7mm Care: Wipe Clean Stone Type: 52 Lab Created Opal Authenticity: Lab Created Stone Birthstone: October Birthstone Earrings Type: Wire Earrings Earrings Style: Hoop Earrings Metal: 18k Gold Over 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.