Features: Quick Ship Jewelry Closure: Lobster Clasp Link Construction: Semisolid Setting: Bead Stone Cut: Fancy Stone Millimeter Measurement: 3 Mm Width, 3 Mm Length Metal Color: Yellow Chain Length: 16 1/2 Inch Chain Width: 1 Millimeters Chain Construction: Rolo Care: Wipe Clean Stone Type: 9 Lab Created Ruby Authenticity: Lab Created Stone Birthstone: July Birthstone Metal: 18k Gold Over Silver Necklace Type: Beaded Necklaces Pendant & Charms Type: Beads Country of Origin: Imported Lead glass-filled rubies require special care. Avoid ultrasonic cleaners, extreme heat and household chemicals and detergents to preserve the life of your stone. Wear with care and clean with warm, soapy water to maintain the beauty of the stone. 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.