Jewelry Closure: Spring Ring Clasp Link Construction: Solid Setting: Prong Shape: Heart Stone Cut: Round Stone Millimeter Measurement: 1.1 Mm Width, 1.1 Mm Length Metal Color: White Chain Length: 18 Inch Chain Width: 1.05 Millimeters Pendant Length: 20.1mm Pendant Width: 22.8mm Chain Construction: Rope Care: Wipe Clean Stone Type: 40 Lab Created Sapphire Authenticity: Lab Created Stone Metal: 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.