Earring Back: Friction Setting: Prong Shape: Heart Stone Cut: Heart Metal Color: White Earring Length: 12mm Earring Width: 12mm Care: Wipe Clean Stone Type: 26 Lab Created Sapphire, 2 Lab Created Emerald Authenticity: Lab Created Stone Birthstone: May Birthstone 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.