Jewelry Closure: Spring Ring Clasp Setting: Prong Stone Cut: Cushion Stone Millimeter Measurement: 7 Mm Width, 9 Mm Length Metal Color: White Chain Length: 18 Inch Pendant Length: 17.5mm Pendant Width: 9.7mm Chain Construction: Cable Care: Wipe Clean Stone Type: 20 Lab Created Sapphire Authenticity: Lab Created Stone Birthstone: September Birthstone Metal: Sterling Silver Necklace Type: Halo Necklaces, Pendant Necklaces Pendant & Charms Type: Pendants 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.