Features: Adjustable Chain Jewelry Closure: Lobster Clasp Link Construction: Semisolid Setting: Prong Stone Cut: Pear Stone Millimeter Measurement: 11.2 Mm Width Metal Color: Yellow Chain Length: 16 Inch Chain Width: 1.2 Millimeters Extender Length: 2 Inch Pendant Length: 22.3mm Pendant Width: 11.2mm Chain Construction: Cable Care: Wipe Clean Stone Type: 1 Genuine Peridot Authenticity: Genuine Stone Birthstone: August Birthstone Metal: 10k 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. Photos are enlarged to show detail.