Ring Style: Halo Rings Setting: Prong Stone Cut: Cushion Stone Millimeter Measurement: 10 Mm Length, 8 Mm Width Metal Color: Yellow Ring Gallery Height: 5.7mm Ring Top Length: 20.1mm Ring Top Width: 21.3mm Band Width: Care: Wipe Clean Stone Type: 1 Lab Created Opal, 32 Lab Created Sapphire Authenticity: Lab Created Stone Birthstone: October Birthstone Metal: 14k Gold Over 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.