Vintage Platinum and Diamond Ring

Offering a platinum and diamond ring, center diamond is 3.5mm , or .15 of a carat, It is surronded by 2 small diamond at the top and bottom and a single diamond on each side. Circa 1945-1955. Ring is a size 7-1/2 and weighing 2.7 grams. Inside of ring reads "10% IRID PLAT"