Jewelry Closure: Lobster Clasp Link Construction: Solid Setting: Prong Stone Cut: Round Stone Millimeter Measurement: 4 Mm Width, 4 Mm Length Metal Color: Rose Chain Length: 18 Inch Chain Width: .66 Millimeters Chain Construction: Cable Care: Wipe Clean Stone Type: 4 Lab Created Ruby, 7 Lab Created Sapphire, 4 Lab Created Emerald Authenticity: Lab Created Stone Metal: 10k Rose Gold Necklace Type: Station Necklaces Country of Origin: Imported Metal may be rhodium plated to enhance appearance and reduce tarnishing. Photos are enlarged to show detail.