Features: Quick Ship Jewelry Closure: Lobster Clasp Link Construction: Solid Setting: Prong Stone Cut: Oval Stone Millimeter Measurement: 8 Mm Length, 6 Mm Width Metal Color: White Chain Length: 13 Inch Extender Length: 2 Inch Pendant Length: 11.3mm Pendant Width: 6.4mm Chain Construction: Cable Care: Wipe Clean Stone Type: 3 Genuine Blue Topaz, 118 Lab Created Sapphire Authenticity: Genuine Stone Birthstone: December Birthstone Metal: Sterling Silver Necklace Type: Collar 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.