Features: Quick Ship Jewelry Closure: Lobster Clasp Link Construction: Solid Setting: Prong Stone Cut: Oval Stone Millimeter Measurement: 4 Mm Width, 6 Mm Length Metal Color: White Chain Length: 18 Inch Stone Treatment: Color Enhanced Chain Construction: Rolo Care: Wipe Clean Stone Type: 8 Genuine Zircon, 7 Genuine Aquamarine Authenticity: Genuine Stone Birthstone: March Birthstone Metal: Sterling Silver Necklace Type: Station 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.