Features: Nickel Free, Quick Ship Jewelry Closure: Spring Ring Clasp Link Construction: Semisolid Setting: Prong Shape: Flower Stone Cut: Round Stone Millimeter Measurement: 6 Mm Width, 6 Mm Length Metal Color: White Chain Length: 18 Inch Chain Width: .9 Millimeters Pendant Length: 16.3mm Pendant Width: 11.8mm Chain Construction: Link Care: Wipe Clean Stone Type: 1 Genuine Blue Topaz, 8 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.