Amethyst Ring 14kt Yellow Gold. For sale is a gorgeous mixed oval cut pale amethyst (39.96cts) ring set in a four prong basket style mounting. It is hallmarked 14K and ring size is 9. The ring was fabricated, cast and handset; it is medium-light,slightly grayish, bluish-purple in color. The ring is in excellent condition and included is an insurance appraisal of $1175.00.