The Art Deco ring does not have a metal mark but was tested with platinum acid and a AuRacle metal tester to be solid platinum. It weighs 9.5 grams. The top of the ring is rectangle in shape and measures 7/8" x 11/16". Bezel set in the center is a round brilliant natural diamond with an approx weight of .75 cts. It is surrounded by 22 round natural diamonds with an approx total weight of .88 cts. Last there are 6 natural diamonds on the sides with an approx total weight of .12 cts. This puts the total diamond weight at around 1.75 cts. The ring wears to a size 7.75 and can be resized.