Features: Quick Ship Jewelry Closure: Lobster Clasp Link Construction: Solid Setting: Bead Stone Cut: Fancy Stone Millimeter Measurement: 4 Mm Width, 4 Mm Length Metal Color: White Chain Length: 17 Inch Extender Length: 2 Inch Care: Wipe Clean Stone Type: 170 Genuine Sapphire Authenticity: Genuine Stone Birthstone: September Birthstone Metal: Sterling Silver Necklace Type: Beaded Necklaces Pendant & Charms Type: Beads 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.