14k gold amethyst and diamond ring 1970s

A 14k gold amethyst and diamond ring - an oval cabochon buff top amethyst four claw set within a row of five diamonds to each shoulder with a wide flat sided tapered shank - weight of amethyst 1=18cts approx - diamonds 10=0.20cts G/SI - total weight 12.3grms - dimensions of face 17 x 18mm - current ring size S.5 - c.1970 USA