Product｜Color Change Pink Tourmaline Quality｜The original ore is from Afghanistan, 100% untreated (see the photo on the inside page, the whole piece of raw stone before the gem is polished). The crystal clear tourmaline ore can change color according to the color temperature of the light source. The spectrum ranges from pink to pink purple to purple red to orange red to orange, which is quite crystal! The total weight of the gem is 31.81 carats. This volume is absolutely rare among the known gem-grade tourmalines, not to mention its super obvious color change ability. This is a museum-grade super tourmaline, and its value is certainly not high. Its appreciation ability is 100% without any suspense. The cutting is personally handled by the famous American Texas cutting master Loren Brown. This cutting is the unique design of the American cutting master Loren Brown. The gem has two layers of star-shaped structure from the center. The innermost one has hexagonal symmetry from the middle star-shaped arrow, and the outer periphery of the gem also has a layer of eight-star radial symmetric arrows covering the outer circle. This sense of layering is rare in the United States, and of course it is unique in Taiwan. The area of the front of the gem is large enough to allow the eyes to see the refraction of light in the gem without looking directly at it at 90 degrees. As the gem moves, the constant reflection of light in the huge crystal and the colorful effect are truly dazzling. This rare pink tourmaline comes with a GIA certificate, which also emphasizes that this is a color-changing tourmaline. Collecting this tourmaline is a sure-win investment, and its value will be incomparable. Clarity｜SI-1 [Refer to GIA's explanation of diamond clarity, SI stands for Some Inclusion - refers to flaws that cannot be seen by the naked eye, and the inclusions of the gem can only be seen after magnification 10 times] Weight｜31.81 carats (rare) Shape｜19.96~20.13 x 14.29 mm｜Precision Custom Cut by Loren Brown Color｜Two-color, color-changing model, it will change from pink to orange according to the color temperature of the light source. In any case, it will not lose its saturation