Jewelry Closure: Spring Ring Clasp Setting: Prong Shape: Butterfly Stone Cut: Round Stone Millimeter Measurement: 4 Mm Length Metal Color: Two Tone Chain Length: 18 Inch Chain Width: .7 Millimeters Pendant Length: 19mm Pendant Width: 15mm Chain Construction: Rope Care: Wipe Clean Stone Type: 1 Lab Created Ruby, 22 Lab Created Sapphire Authenticity: Lab Created Stone Birthstone: July Birthstone Metal: 10k Gold, Sterling Silver Necklace Type: Pendant Necklaces Pendant & Charms Type: Pendants 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.