The vintage ring is marked 14k and is solid white gold. It looks to be part yellow but that is just the lighting. Set in the center is a round brilliant cut natural diamond . It measures 5.5 x 5.5 x 2.8  mm which makes it approx .52 cts. It is VS2 ,  I COLOR.  It also has a total of 16 round single cut natural diamonds on the sides with an approx total weight of .33 cts. The ring wears to a size 9.5 and can be resized. The gold could use a light polish.