The vintage ring does not have a metal  mark but was tested with nitric acid and a Auaracle tester to be solid 14k  white gold. It weighs 3.8 grams and comes with a size 6 arthritic shank. Set at the top is a round European cut Natural diamond . It measures 6.0 mm in diameter which makes it approx .80 cts. The diamond grades SI1 and I color.