Earring Back: Screw Back Post Setting: Prong Shape: Flower Stone Cut: Pear Stone Millimeter Measurement: 4 Mm Length Metal Color: White Earring Length: 12.5mm Earring Width: 12.5mm Care: Wipe Clean Stone Type: 10 Lab Created Ruby, 32 Lab Created Sapphire Authenticity: Lab Created Stone Birthstone: July Birthstone Metal: Sterling Silver Country of Origin: Imported Lead glass-filled rubies require special care. Avoid ultrasonic cleaners, extreme heat and household chemicals and detergents to preserve the life of your stone. Wear with care and clean with warm, soapy water to maintain the beauty of the stone. 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.