Features: Nickel Free, Quick Ship Earring Back: Post Setting: Prong Shape: Round Stone Cut: Round Stone Millimeter Measurement: 5.93 Mm Length Metal Color: White Earring Width: 3.1mm Care: Wipe Clean Stone Type: 1 Lab Created Sapphire Authenticity: Lab Created Stone Birthstone: September Birthstone Earrings Style: Stud 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.