Earring Back: Screw Back Post Setting: Prong Shape: Flower Stone Cut: Marquise Stone Millimeter Measurement: 5 Mm Length, 2.5 Mm Width Metal Color: White Earring Length: 11.5mm Earring Width: 11.5mm Care: Wipe Clean Stone Type: 12 Genuine Amethyst, 4 Lab Created Sapphire Authenticity: Genuine Stone Birthstone: February Birthstone 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.