A group of gemstone and fourteen karat white or yellow gold rings including an oval-cut green synthetic spinel, measuring approximately 20.0 x 15.2 x 8.0 mm; an oval-cut amethyst, measuring approximately 19.1 x 17.1 x 10.6 mm; a circular-cut smoky quartz, measuring approximately 22.0 x 14.0 mm; an oval-cut colorless quartz, measuring approximately 17.8 x 14.0 x 9.2 mm. 27.9 gross dwt; Respective sizes: 4 1/2, 5, 7, 6 1/2