Features: Nickel Free, Quick Ship Jewelry Closure: Spring Ring Clasp Link Construction: Solid Setting: Prong Shape: Cushion Stone Cut: Cushion Stone Millimeter Measurement: 7 Mm Length, 7 Mm Width Metal Color: White Chain Length: 18 Inch Chain Width: 1.3 Millimeters Pendant Length: 19mm Pendant Width: 10mm Chain Construction: Link Care: Wipe Clean Stone Type: 1 Simulated Aquamarine Authenticity: Lab Created Stone Birthstone: March 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. Quick Ship items ship directly from the manufacturer within 3 to 5 business days. Photos are enlarged to show detail.