Earring Back: Friction Setting: Prong Shape: Triangle Stone Cut: Trillion Stone Millimeter Measurement: 10 Mm Width, 10 Mm Length Metal Color: White Earring Length: 20.6mm Earring Width: 11.6mm Care: Wipe Clean Stone Type: 2 Lab Created Opal, 8 Lab Created Sapphire Authenticity: Lab Created Stone Birthstone: October 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.