Features: Quick Ship Circumference: 7 1/2 Inch Jewelry Closure: Lobster Clasp Setting: Prong Stone Cut: Marquise Metal Color: Yellow Care: Wipe Clean Stone Type: 7 Lab Created Opal, 8 Lab Created Sapphire Authenticity: Lab Created Stone Birthstone: October Birthstone Bracelet Type: Bangle Bracelets Metal: 14k Gold Over Silver 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.