Turquoise bracelets were valuable during the Warring States Period. Good quality turquoise has been loved by countless people for its gorgeous colors and enamel-like texture. In ancient times, only the royal dignitaries used it. In the Qing dynasty, it was even known as the stone of heaven, showing its nobility. To collect turquoise, we must determine the value of turquoise itself, but it should be noted that value is not the same as price. Generally good turquoise is very rare, so even if we have money, we may not be able to buy it. Turquoise is one of the ancient jade. Because of its bright color, it has become a gem spread from the east to the west. In ancient Mexico and ancient Egypt, it was regarded as a mysterious thing, and its products were used as amulets. In China, turquoise, Hetian jade, dushan jade and Xiuyu are called the four famous jade. The mineral objects of turquoise porcelain pine are closely combined, fine in texture, uniform in color and small in size. After cutting and polishing, it can present the texture and luster of porcelain. The characteristics of iron wire porcelain pine ore body and after cutting and polishing are basically the same as those of porcelain pine, except that jade contains black or maroon texture, which shows that iron wire is top grade and fine and clear. The output of these two kinds of porcelain pine is scarce, which is of great collection value: most of them are hard pine in the market, with close combination of picking and resting, relatively delicate texture, rich color and uneven block size. After cutting and polishing, the oil wax has a dry texture and a harmonious color. When buying finished products, the products with unique colors and textures, harmonious surface gloss and large block size have higher value.