Ladies' 18k white gold sapphire ring, with one oval sapphire

Ladies' 18k white gold sapphire ring, with one oval sapphire. The sapphire weighs 1.60 carats, and is set in a 18k white gold 4 prong halo setting. In addition, there are twelve shared prong set round brilliant cut diamonds, with a total weight of 0.61 carat surrounding the sapphire.