Jewelry Closure: Spring Ring Clasp Setting: Prong Shape: Circle Stone Cut: Round Stone Millimeter Measurement: 5 Mm Length Metal Color: White Chain Length: 18 Inch Chain Width: .7 Millimeters Pendant Length: 15mm Pendant Width: 15mm Chain Construction: Rope Care: Wipe Clean Stone Type: 11 Lab Created Sapphire Authenticity: Lab Created Stone Birthstone: September Birthstone Metal: Sterling Silver Necklace Type: 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.