Diamond Clarity: I2-I3 Jewelry Closure: Spring Ring Clasp Link Construction: Solid Setting: Prong Shape: Keys Stone Cut: Round Stone Millimeter Measurement: 3 Mm Length, 3 Mm Width Diamond Color: H-I Metal Color: Yellow Chain Length: 18 Inch Pendant Length: 30.1mm Pendant Width: 9.4mm Chain Construction: Rope Care: Hand Wash Stone Type: 20 Natural Diamond, 1 Genuine Sapphire Authenticity: Genuine Stone Birthstone: September 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.