Quartz and all varieties of Quartz
15.39 carat Brazil Purple Amethyst
2.34 carat Purple Amethyst
17.91 carat Brazil Purple Amethyst
48.51 carat Brazil Purple Amethyst
3.16 carat Brazil Purple Amethyst
3.97 carat Brazil Purple Amethyst
3.41 carat Brazil Purple Amethyst
