Ring Style: Cocktail Rings Features: Quick Ship Setting: Prong Stone Cut: Trillion Stone Millimeter Measurement: 6 Mm Length, 6 Mm Width Metal Color: White Band Width: 2mm Care: Wipe Clean Stone Type: 1 Lab Created Opal, 17 Lab Created Sapphire Authenticity: Lab Created Stone Birthstone: October Birthstone Metal: Sterling Silver 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.