Vintage 10K Solid White Gold 2.05ct Natural White Pearl, Diamond & Mixed Gemstone Ring ...Marked 10K R.KLEIN ...Total of weights 5.2grams...Size 7.25.. With 01 Natural White Pearl 7.5MM 57 Round cut Diamonds 1.5MM ( .015ct x 57 = .85ct ) 03 Oval cut Natural Tanzanite, Amethyst & Blue Topaz 4.5 x 3MM ( .18ct x 3 = .54ct ) 04 Pear cut Natural Tourmaline,Citrine,Garnet & Peridot 4.5 x 3MM ( .22ct x 4 = .66ct )