Lady's Platinum Sapphire & Diamond Ring. Ring Size: 7 1/2 (Can be Resized to Fit Most Any Finger.) Contains: One Natural Oval Cut Sapphire. Weight Approx: 6.83ct, Color: Blue. Two Natural Trapezoid Step Cut Diamonds. Weight Approx: 0.62cttw, Color: G, Clarity: VS1 / VS2. A handmade Platinum ring, shown with Natural Blue Sapphire weighing 6.83 carats.