Jewelry Closure: Spring Ring Clasp Setting: Prong Stone Cut: Cushion Stone Millimeter Measurement: 6 Mm Length Metal Color: Yellow Chain Length: 18 Inch Chain Width: 1.5 Millimeters Pendant Length: 13.5mm Pendant Width: 11.5mm Care: Wipe Clean Stone Type: 1 Lab Created Emerald, 28 Lab Created Sapphire Authenticity: Lab Created Stone Birthstone: May Birthstone Metal: Sterling Silver, 14k 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.