Jewelry Closure: Spring Ring Clasp Link Construction: Solid Setting: Prong Stone Cut: Pear Stone Millimeter Measurement: 8 Mm Length, 5 Mm Width Metal Color: White Chain Length: 18 Inch Chain Width: 1.05 Millimeters Pendant Length: 16.1mm Pendant Width: 13mm Chain Construction: Rope Care: Wipe Clean Stone Type: 1 Lab Created Sapphire, 1 Genuine Topaz Authenticity: Lab Created Stone Birthstone: September Birthstone Metal: Sterling Silver Necklace Type: Pendant Necklaces, Y Necklaces 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.