Product｜Viburnum. Aquamarine｜Super high quality viburnum from Tanzania. Although lapis lazuli is classified as a second-class gemstone (there are three categories of gemstone clarity, the first category: it is easy to find flawless materials; the second category is "it is difficult to find flawless materials; the third category refers to "materials that must have flaws". Lapis lazuli and sapphire are both in the second category. Not only are the colors similar, but they are also rarely flawless. Once they are heavy and flawless, the price will be very high instantly. Mohs hardness 5, need to be careful when wearing it. Clean | SI1 [Refer to GIA's explanation of diamond clarity, SI is Some Inclusion - refers to the flaws that cannot be seen by the naked eye, and the inclusions of the gemstone can only be seen after magnification 10 times] Volume | 1.37 carats Shape | 10.9 x 6.6x 4.4mm. Pear shape Cut [Custom, Designed PEAR] Cut grade: EXCELLENT Color | It has a blue-purple color like Tanzanite and has a high color change effect that can instantly turn into golden gray or light blue