Ring Style: Halo Rings Setting: Prong Stone Cut: Marquise Stone Millimeter Measurement: 12 Mm Length, 6 Mm Width Metal Color: White Care: Wipe Clean Stone Type: 54 Lab Created Sapphire, 1 Genuine Topaz Authenticity: Genuine Stone Birthstone: December 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.