Ring Style: Stackable Rings Features: Stackable, Quick Ship Setting: Prong Stone Cut: Round Metal Color: White Stone Treatment: Resin Filled Band Width: 2.5mm Care: Wipe Clean Stone Type: 1 Lab Created Opal 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.