Earring Back: Friction Setting: Prong Stone Cut: Emerald Stone Millimeter Measurement: 12 Mm Length, 6 Mm Width Metal Color: White Earring Length: 40mm Earring Width: 6.9mm Care: Wipe Clean Stone Type: 2 Genuine Iolite, 2 Genuine Amethyst, 24 Lab Created Sapphire Authenticity: Genuine Stone Birthstone: February Birthstone Earrings Style: Drop 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.