Earring Back: Friction Setting: Prong Shape: Cushion Stone Cut: Cushion Metal Color: White Earring Length: 9.5mm Earring Width: 9.5mm Care: Wipe Clean Stone Type: 48 Lab Created Sapphire, 2 Lab Created Opal Authenticity: Lab Created Stone Birthstone: October Birthstone Earrings Type: Post Earrings 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. Photos are enlarged to show detail.