Jewelry Closure: Spring Ring Clasp Link Construction: Solid Setting: Prong Shape: Infinity Stone Cut: Round Stone Millimeter Measurement: 1.3 Mm Length, 1.3 Mm Width Metal Color: White Chain Length: 18 Inch Chain Width: 1.05 Millimeters Pendant Length: 19.1mm Pendant Width: 19.1mm Chain Construction: Rope Care: Wipe Clean Stone Type: 55 Lab Created Sapphire Authenticity: Lab Created Stone Birthstone: September Birthstone Metal: Sterling Silver Necklace Type: Pendant 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.