Lantian jade's discoloration may be caused by artificial addition of dyes. After the dye disappeared, lantian jade changed color. It may also be because lantian jade is a variety of hibiscus jade, which contains manganese and is easy to change color. It is also possible that lantian jade is corroded, which leads to discoloration.

The natural lantian jade caused by dyeing will not change color easily, and the color will not change much even if it is worn for a long time. Unless the color of lantian jade is artificially dyed, the dye in this lantian jade will gradually disappear after being worn for a period of time, showing the original color of jade, which is the fading and discoloration we see.

Lantian jade caused by varieties can be divided into ginger jade, silk-wrapped jade, hibiscus jade and plum-blossom jade. Only hibiscus jade will change color, because hibiscus jade contains manganese, which is chemically active and will change color when exposed to air for a long time.

Some corroded people don't pay attention to maintenance when wearing lantian jade. When lantian jade is contaminated with dirt and not cleaned up in time, the dirt will slowly corrode the surface of lantian jade, and lantian jade will change color. There are also some corrosive substances that will penetrate into the interior of lantian jade, making the colors of lantian jade mixed together.