Features: Initials, Quick Ship Jewelry Closure: Spring Ring Clasp Link Construction: Solid Setting: Pave Stone Cut: Round Stone Millimeter Measurement: 3 Mm Length, 3 Mm Width Metal Color: Yellow Chain Length: 18 Inch Chain Width: .7 Millimeters Pendant Length: 21.5mm Chain Construction: Rope Care: Wipe Clean Stone Type: 11 Lab Created Sapphire, 1 Genuine Blue Topaz Authenticity: Genuine Stone Birthstone: December Birthstone Metal: 14k Gold Over 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.