Doing a lot with a little, this ring arranges six very dark amethysts and three tiny diamonds in a cluster big enough to cover about 3/4" of finger real estate.  

Oval-shaped, facted amethysts are approximately 0.40 carats each.  

The three single-cut diamonds are set in little buttercups to make them look bigger.  They're about 0.01 carats each, and are not too bad on the whiteness front but very, very included.

Gold swag detail at the shoulders.

The face of the ring is 3/4" tall and 5/8" wide (20mm x 15mm)

Slightly rounded, plain band is 0.7mm thick and 2mm wide.

Currently a size 6.5 according to the mandrel, but because the ring face is long and there's some space behind it, this ring fits more like a 7.  Easily resized.

Stamped "14KP" and "CI," an unknown maker's mark.  The "KP" designation means "KARAT PLUMB," and was used by American jewelers before the early 1980s to tell the consumer that the gold is truly 14 karat (58.3% pure gold).   Some legislation passed in late 1970s and enacted in the early 1980s made it illegal to call gold 14K unless the gold content was at least 58.3%.  Prior to that, however, it was common practice to stamp items "14K" if the purity level was in the ballpark of 58.3%.  So your 14K ring might actually be 13.5 karats.  

Nobody got very exercised about this until gold prices shot up in the 1970s, and that's when the KP designation was most often used.  It's therefore likely, but not certain, that our ring was made sometime in the 1970s.  

The ring weighs 4 grams and the stone weight is estimated at  2.43 carats, so the gold weight is approximately 3.5 grams.