Generally, with the change of time, the comfort will change in color. If you feel dirty, you can wash it with water, wipe it with a clean soft cloth and put it in a ventilated place to dry.
"Comfortable stone, a large-scale cedar stone was found in South Africa. It became a commercial variety in the 1970s. The colors of Sugilite are obvious dark blue, red purple and blue purple, and sometimes there are several different shades on ribbons and spots. Sugilite is usually yellow-brown, light pink and black, but these are rarely used in jewelry. Su Jishi is generally translucent to opaque, and gem-grade Su Jishi is bright and translucent, similar to high-quality chalcedony, but it is difficult to obtain. " -Quoted from Baidu Encyclopedia.
Shu capital has long been called "the stone of a thousand seals", not only because of the time of discovery, but also because of its rarity. Even now, only a handful of countries produce this kind of ore. Shuzulai is purple in appearance, which will give off the mysterious Leng Yan light when worn for a long time. People think that Shu Quanlai has the function of eliminating negative energy and can help people prevent and eliminate diseases, so its collection value is relatively high.
And the demand for comfort in the market is growing, which makes more and more people start.