Ring Style: Cocktail Rings Setting: Prong Shape: Oval Stone Cut: Oval Stone Millimeter Measurement: 6 Mm Width, 8 Mm Length Metal Color: White Ring Gallery Height: 4.5mm Ring Top Length: 20.4mm Ring Top Width: 20.7mm Band Width: Care: Wipe Clean Stone Type: 2 Lab Created Opal, 80 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. Photos are enlarged to show detail.