Simple, seductive curvatures. Emblazoned with deep and rich amethysts, The Curvature was designed by Laykin et Cie in 1968. Originally created and still available in pave diamonds it is now available in a variety of explosive colors. This particular ring is defined by her uniform and unflinching commitment to the royal color of 5 carats of gorgeous amethysts, each tightly mounted in perfect uniformity. Available in sizes 6 - 9 in 18kt white or yellow gold.