Features: Quick Ship Jewelry Closure: Spring Ring Clasp Setting: Prong Stone Cut: Trillion Stone Millimeter Measurement: 6 Mm Width, 6 Mm Length Metal Color: White Chain Length: 18 Inch Pendant Length: 22.1mm Pendant Width: 12.2mm Chain Construction: Box Care: Wipe Clean Stone Type: 2 Genuine Blue Topaz, 16 Lab Created Sapphire Authenticity: Genuine Stone Birthstone: December 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.