Jewelry Closure: Spring Ring Clasp Link Construction: Solid Setting: Prong Stone Cut: Cushion Stone Millimeter Measurement: 9 Mm Length, 7 Mm Width Metal Color: Rose Chain Length: 18 Inch Pendant Length: 17.5mm Pendant Width: 9.7mm Chain Construction: Cable Care: Wipe Clean Stone Type: 19 Lab Created Sapphire, 1 Lab Created Opal Authenticity: Lab Created Stone Birthstone: October Birthstone Metal: 14k Rose Gold Over Silver Necklace Type: Halo Necklaces, 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. Photos are enlarged to show detail.