Estate American 18KY 1.50 CTW diamond ring, circa 2000. This 18 karat yellow gold ring features 20 square diamonds at 1.20 carat total weight with VVS2 clarity and F color. There are also 20 round brilliant cut accent diamonds at .30 carat total weight. These diamonds have VS-SI clarity and G color. This estate diamond band has a total of 1.50 carats in diamonds and is a size 5.5.