Lady's 18 karat yellow gold blue sapphire and diamond ring, 1-1/3 carat total gem weight, marked "750". Contains: Twenty-seven natural blue sapphires, clarity eye clean, very dark, very slightly grayish, blue color, (GIA B 8/3), very good cut. (11) invisible set square standard step cut, 2.00 x 2.00mm, approximate total weight 0.55ct. (4) invisible set triangle standard step cut, 2.00 x 1.50mm, approximate total weight 0.08ct. (10) channel set square standard step cut, 1.80mm, approximate total weight 0.30ct. (2) bezel set round cabochon cut, 1.90 x 1.90 x 1.24mm, approximate total weight of 0.10ct. Ten round brilliant cut diamonds, channel set, clarity SI1-SI2, color G-H, very good to good cut. (2) 2.50 x 1.50mm approximate total weight .11ct. (4) 2.10-2.00 x 1.23mm approximate total weight .13ct. (4) 1.60 x 0.96mm (depth est.) approximate total weight .06ct. Total Weight of Sapphires 1.03ct. Total Weight of Diamonds0.30ct. Weight of Ring 9.80 grams