Features: Quick Ship Jewelry Closure: Spring Ring Clasp Setting: Prong Shape: Oval Stone Cut: Oval Stone Millimeter Measurement: 8 Mm Width, 10 Mm Length Metal Color: Yellow Chain Length: 18 Inch Chain Width: 2.31 Millimeters Pendant Length: 36.8mm Pendant Width: 11.8mm Chain Construction: Cable Care: Wipe Clean Stone Type: 3 Genuine Blue Topaz, 27 Lab Created Sapphire Authenticity: Genuine Stone Birthstone: December Birthstone Metal: 18k Gold Over Silver Necklace Type: Pendant Necklaces Pendant & Charms Type: Pendants 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.