Product｜Sunset Tourmaline・Magnesium Tourmaline｜This is 100% natural African Tanzania magnesium tourmaline without any treatment, commonly known as sunset tourmaline. Tanzania's sunset tourmaline is indeed the best among all the countries producing tourmaline in Africa, and the color is very similar to the sunset on the African grassland. The clarity of sunset tourmaline, at least for yellow and Tanzania, means the sustainable growth of value. Tourmaline is a very hard gemstone with a Mohs hardness of 7.5. This one is very suitable as a ring. Clarity｜FL [Flawless means flawless. This gemstone can be called flawless because it refers to the GIA clarity standard for diamonds under 10x magnification. It is applied to this gemstone to show that even under 10x magnification, no inclusions in the gemstone can be seen. Any small flaws on the surface of the gem may only be visible under a microscope.] Quantity | 0.46 carats Shape | 4.7 x 3.5 x 3.1 mm | Modified Rectangular Cutting Grade: EXCELLENT Color | Green with yellow sparkle