Features: Quick Ship Jewelry Closure: Spring Ring Clasp Metal Color: Yellow Chain Length: 18 Inch Pendant Length: 16mm Pendant Width: 11mm Chain Construction: Box Care: Wipe Clean Stone Type: 24 Lab Created Sapphire, 1 Lab Created Opal Authenticity: Lab Created Stone Birthstone: October Birthstone Metal: 18k Gold Over 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.