Ring Style: Cocktail Rings, Promise Rings Setting: Prong Stone Cut: Oval Stone Millimeter Measurement: 6 Mm Length, 4 Mm Width Metal Color: White Ring Gallery Height: 1.5mm Care: Wipe Clean Stone Type: 42 Lab Created Sapphire, 1 Lab Created Emerald Authenticity: Lab Created Stone Birthstone: May 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.