Features: Quick Ship Jewelry Closure: Box Clasp Setting: Prong Stone Cut: Heart Stone Millimeter Measurement: 4 Mm Length, 4 Mm Width Metal Color: White Chain Length: 18 Inch Care: Wipe Clean Stone Type: 104 Lab Created Emerald Authenticity: Lab Created Stone Birthstone: May Birthstone Metal: Sterling Silver Necklace Type: Tennis 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.