The vintage ring is marked 90% platinum. It weighs 6.9 grams. Set at the top is a blood red oval cabochon natural ruby with an approx weight of 2.95 cts. There are 3 round brilliant cut natural diamonds on each side. The 6 diamonds have an approx total weight of .12 cts. The ring wears to a size 6 and can be resized by your local jeweler.