Features: Quick Ship Jewelry Closure: Spring Ring Clasp Link Construction: Solid Setting: Prong Shape: Heart Stone Cut: Round Stone Millimeter Measurement: 3 Mm Length Metal Color: Two Tone Chain Length: 18 Inch Chain Width: 1.1 Millimeters Pendant Length: 18mm Pendant Width: 17.5mm Chain Construction: Rope Care: Wipe Clean Stone Type: 13 Lab Created Ruby, 5 Natural Diamond Authenticity: Lab Created Stone Birthstone: July Birthstone Metal: 10k Gold Over 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. Quick Ship items ship directly from the manufacturer within 3 to 5 business days. Photos are enlarged to show detail.