Jewelry Closure: Spring Ring Clasp Link Construction: Hollow Setting: Prong Shape: Infinity Stone Cut: Round Metal Color: White Chain Length: 18 Inch Chain Width: 1.1 Millimeters Chain Gauge: 025 Pendant Length: 7.3mm Pendant Width: 21.6mm Stone Treatment: Color Enhanced Chain Construction: Cable Care: Wipe Clean Stone Type: 11 Genuine Amethyst Authenticity: Genuine Stone Birthstone: February 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.