Features: Quick Ship Jewelry Closure: Spring Ring Clasp Setting: Prong Shape: Animals Stone Cut: Heart Stone Millimeter Measurement: 6 Mm Length, 6 Mm Width Metal Color: White Chain Length: 18 Inch Extender Length: 2 Inch Pendant Length: 13.6mm Pendant Width: 15.7mm Chain Construction: Box Care: Wipe Clean Stone Type: 1 Lab Created Opal, 46 Lab Created Sapphire Authenticity: Lab Created Stone Birthstone: October 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.