Diamond Clarity: I2-I3 Jewelry Closure: Spring Ring Clasp Link Construction: Solid Setting: Prong Shape: Keys, Heart Stone Cut: Round Stone Millimeter Measurement: 3 Mm Width, 3 Mm Length 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 Authenticity: Lead Glass-Filled Ruby Birthstone: July Birthstone Metal: 10k Gold Necklace Type: Pendant Necklaces Country of Origin: Imported Lead glass-filled rubies require special care. Avoid ultrasonic cleaners, extreme heat and household chemicals and detergents to preserve the life of your stone. Wear with care and clean with warm, soapy water to maintain the beauty of the stone. 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.