Lady's Platinum Sapphire and Diamond Ring. Ring Size: 6 1/4 (Can be Resized to Fit Most Any Finger) Contains: One Natural Cushion Cut Sapphire. Weight Approx: 2.10ct, Color: Blue, Origin: Sri Lanka (Ceylon). 110 Natural Round Brilliant Cut Diamonds. Weight Approx: .80ct, Color: F-G, Clarity: VS. When the phrase sapphire blue was written, the author must have had this ring in mind. The cut and color of this gemstone are premier. It is mounted in the noble metal of kings, platinum. This ring came to us by way of a needy estate, and priced to sell.