Jewelry Closure: Spring Ring Clasp Setting: Prong Shape: Animals Stone Cut: Round Stone Millimeter Measurement: 3 Mm Length Metal Color: Two Tone Chain Length: 18 Inch Chain Width: .7 Millimeters Pendant Length: 20mm Pendant Width: 11.5mm Chain Construction: Rope Care: Wipe Clean Stone Type: 20 Lab Created Sapphire, 1 Genuine Amethyst Authenticity: Genuine Stone Birthstone: February Birthstone Metal: 10k Gold, Sterling 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.