Ring Style: Halo Rings Setting: Prong Stone Cut: Oval Stone Millimeter Measurement: 14 Mm Length, 8 Mm Width Metal Color: White Care: Wipe Clean Stone Type: 62 Lab Created Sapphire, 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. Photos are enlarged to show detail.