Jewelry Closure: Spring Ring Clasp Link Construction: Solid Setting: Prong Shape: Heart Stone Cut: Round Stone Millimeter Measurement: 1.2 Mm Length, 1.2 Mm Width Metal Color: White Chain Length: 18 Inch Chain Width: 1.05 Millimeters Pendant Length: 18.9mm Pendant Width: 19.9mm Chain Construction: Rope Care: Wipe Clean Stone Type: 30 Lab Created Ruby, 3 Lab Created Sapphire Authenticity: Lab Created Stone Birthstone: July Birthstone Metal: Sterling Silver Necklace Type: Pendant Necklaces, Y 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.