Features: Quick Ship Jewelry Closure: Spring Ring Clasp Link Construction: Solid Setting: Prong Shape: Butterfly Stone Cut: Pear Stone Millimeter Measurement: 5 Mm Length Metal Color: White Chain Length: 18 Inch Chain Width: 1.04 Millimeters Pendant Length: 23mm Pendant Width: 23mm Chain Construction: Rope Care: Wipe Clean Stone Type: 8 Genuine Blue Topaz, 30 Genuine Topaz 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.