Topaz is the birthstone of November, also known as Topa (TOPAZ). It is said that the original meaning is "difficult to find." In fact, topaz is not necessarily yellow, high-quality brown topaz is like "Sherley", but also golden yellow; light blue topaz is also called "Ceylon sapphire", which is quite valuable; there is colorless topaz, which was used in the past. It is called "slave diamond". The dispersion and brightness are not very good and the value is limited. The colors such as purple and pink are very rare and valuable.
As a gemstone of topaz, the color must be gorgeous. Topaz has a relatively complete cleavage and poor toughness, so don't beat or drop it. Topaz can't usually be a ring face, only when it is packaged. Most topaz has spotted, cracked, etc., can not pick the topaz with the choice of diamonds, of course, the cleaner the better, the texture should feel soft and smooth, on this basis, the darker the color, the more valuable. Experts say that the finest purple and pink topaz is valuable. The "Snow" color is also called "Emperor Topaz", which is the treasure, then the blue and the general yellow.
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