Weight : 2.330 Carat Dimension : 9.4 X 5 X 3.6 MM & 4.2 X 4.2 X 3.2 MM Color: Bluish Green & Pink , Ink Blue Shape : Emerald Cut & Asscher Cut Luster: Vitreous Birthstone : October Clarity : Loupe Clean Hardness : 7 – 7.5 Transparency: Transparent Refractive index: 1.616 – 1.65 This 2.55 Carat Bluish Green Tourmaline features an Emerald shape with excellent Cut Grade. The gemstone is transparent and has eye-clean clarity. It is accompanied by a reverse pair of Blue & Pink Tourmaline. The natural gemstone, originating from Afghanistan, is polished and measures 9.4 mm in length, 5 mm in width, and 3.6 mm in depth. Certification is available on customer demand. Brand: Gems And Minerals Hub.