The listing, Beautiful Marquise Amethyst Gemstone 12x6MM has ended.
Beautiful Marquise Amethyst Gemstone. It is a 12x6 MM, 1.72 Carat Jewel with beautiful color. Amethyst owes its violet color to irradiation, iron impurities (in some cases in conjunction with transition element impurities), and the presence of trace elements, which result in complex crystal lattice substitutions. The hardness of the mineral is the same as quartz, thus it is suitable for use in jewelry. Amethyst was used as a gemstone by the ancient Egyptians and was largely employed in antiquity for intaglio engraved gems.