Jewelry Closure: Lobster Clasp Link Construction: Semisolid Setting: Prong Shape: Cushion Stone Cut: Cushion Stone Millimeter Measurement: 8 Mm Length, 6 Mm Width Metal Color: White Chain Length: 18 Inch Chain Width: 2 Millimeters Pendant Length: 23.5mm Pendant Width: 14mm Rounded Carat Weight: 1/10 Ct. T.w. Chain Construction: Link Care: Wipe Clean Stone Type: 22 Natural Diamond, 1 Genuine Opal Authenticity: Genuine Stone Birthstone: October Birthstone Metal: Sterling Silver Necklace Type: Pendant Necklaces Pendant & Charms Type: Pendants Country of Origin: Imported Gemstones may be treated and may require special care. Diamond total weights may vary between .01 and .08 carat. 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.