Features: Quick Ship Jewelry Closure: Spring Ring Clasp Link Construction: Hollow Setting: Prong Shape: Round Stone Cut: Round Metal Color: Yellow Chain Length: 18 Inch Chain Gauge: 050 Pendant Length: 9.4mm Pendant Width: 4.6mm Chain Construction: Rope Care: Wipe Clean Stone Type: 1 Lab Created Opal Authenticity: Lab Created Stone Birthstone: October Birthstone Metal: 14k Gold Necklace Type: Pendant Necklaces Pendant & Charms Type: Pendants 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.