This cocktail ring will be well noticed. It does not have a metal mark, but was tested with acid and a "kee" tester to be solid platinum and weighs 18.5 grams. Set in the center is a round brilliant cut natural diamond with an approx weight of .60 cts. There are 24 round brilliant cut natural diamonds set between the blue sapphires. They have an approx total weight of 2.00 cts. Along the edges are another 36 diamonds with an approx total weight of .72 cts. Diamonds range from SI1 TO SI3 and H to I in color. last, in a cross style are 19 french cut blue natural sapphires with an approx total weight of 2.28 cts. This puts the total stone weight at around 5.60 cts. The ring wears to a size 6.5 and can be resized.