Jewelry Closure: Spring Ring Clasp Link Construction: Solid Setting: Prong Shape: Cross Stone Cut: Round Stone Millimeter Measurement: 4 Mm Width, 1 Mm Length Metal Color: Rose Chain Length: 18 Inch Chain Width: .6 Millimeters Pendant Length: 27.3mm Pendant Width: 16mm Chain Construction: Rope Care: Wipe Clean Stone Type: 10 Natural Diamond, 1 Genuine Opal Authenticity: Genuine Stone Birthstone: October Birthstone Metal: 14k Rose 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. Photos are enlarged to show detail.