Jewelry Closure: Spring Ring Clasp Setting: Prong Shape: Flower Stone Cut: Round Stone Millimeter Measurement: 4.5 Mm Width, 4.5 Mm Length Metal Color: Yellow Chain Length: 18 Inch Chain Width: .6 Millimeters Pendant Length: 9.8mm Pendant Width: 29.8mm Chain Construction: Rope Care: Wipe Clean Stone Type: 3 Genuine Amethyst Authenticity: Genuine Stone Birthstone: February Birthstone Metal: 10k Gold 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.