Great Amethyst. Natural and untreated gemstone. Most gemstones bought online aren't very high quality. They're generally poorly cut, have weak color and too many inclusions. In order for a gemstone to qualify as jewelry grade, it has to meet all three of those quality standards -- cut, color and clarity. This gemstone is jewelry grade, and is ready to be used as the center stone for a piece of high end jewelry. We sell thousands of carats of gemstones per month. So when we set aside a gemstone as being top jewelry grade, that means that that gemstone has been chosen from hundreds of others as the very best 5% of the stones we bring in.