Ring Style: Cocktail Rings Setting: Prong Shape: Oval Stone Cut: Oval Stone Millimeter Measurement: 5 Mm Length, 3 Mm Width Metal Color: Silver Tone Ring Gallery Height: 5.6mm Ring Top Length: 18.8mm Ring Top Width: 21.2mm Band Width: 2.5mm Care: Wipe Clean Stone Type: 3 Lab Created Opal, 102 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.