Features: Quick Ship Jewelry Closure: Box Clasp Link Construction: Solid Setting: Prong Stone Cut: Princess Stone Millimeter Measurement: 4 Mm Width, 4 Mm Length Metal Color: Yellow Chain Length: 18 Inch Care: Wipe Clean Stone Type: 97 Lab Created Ruby Authenticity: Lab Created Stone Birthstone: July Birthstone Metal: 18k Gold Over Silver Necklace Type: Tennis 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.