Product｜Yellow Tourmaline・Sunset Tourmaline Quality｜Tourmaline from Tanzania, Africa. Tourmaline is produced in many African countries, but only Dravite (the scientific name for tourmaline containing "magnesium") produced in Tanzania is the most outstanding. There is a standard for distinguishing yellow tourmaline - the color of gem-grade tourmaline crystals cannot have green or cyan tones. Because the depth of yellow can reach red and brown, this is all due to the natural depth of the yellow color level. But yellow will never turn green according to the depth. Therefore, even if the yellow tourmaline with cyan tones occupies the majority, its value will instantly fall to the bottom, because the tourmaline with green tones and yellow tourmaline are two completely different tourmalines. The scientific name is Verdilite, which is the most common tourmaline and the price is most acceptable to consumers among many tourmaline types. In the current situation where the prices of all gem-grade tourmalines are rising across the board, Verdilite seems to be "less expensive". Of course, the entire series of Xinkuangshenyi tourmalines are natural tourmalines that are not heated or processed. They are directly shipped to the United States for cutting and polishing. The Mohs hardness of yellow tourmaline is 7~7.5, and it is durable enough. Clean｜FL [Flawless means flawless. This yellow tourmaline is called flawless because it refers to the GIA clarity standard for diamonds under 10x magnification. It is applied to this yellow tourmaline and shows that even under 10x magnification, there are still no inclusions in the tourmaline. If there are small flaws on the surface of the yellow tourmaline, they may only be seen under a microscope] Volume｜1.73 carats. Suitable for the main stone of the ring. When used in men's rings, it can be used to replace the amber, tiger's eye stone, or unknown yellow sapphire that was common in the past. There is no big limit as the main stone of the female ring. Its size of 1.73 carats is also suitable for pendants. Shape｜8.2 x 6.3 x 5.3 mm｜Custom Designed Radiant Oval・Cutting grade: EXCELLENT Color｜[Clarity ~ Yellow]