Jewelry Closure: Spring Ring Clasp Link Construction: Solid Setting: Prong Stone Cut: Cushion Stone Millimeter Measurement: 12 Mm Length, 8 Mm Width Metal Color: Yellow Chain Length: 18 Inch Chain Width: .6 Millimeters Pendant Length: 20.5mm Pendant Width: 8.9mm Chain Construction: Rope Care: Wipe Clean Stone Type: 1 Genuine Quartz Authenticity: Genuine Stone 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.