The ring does not have a metal mark but was tested with nitric acid and a "kee" tester to be solid white gold. It weighs 3.9 grams. Set at the top is a oval red natural ruby with an approx weight of 6.65 cts. The ruby has a fantastic star. Surrounding the ruby and down the sides are 72 round single cut natural diamonds with an approx total weight of .25 cts. The ring wears to a size 7 1/2 and can be resized.