What does bleaching involve in gemstone treatment?

Bleaching in gemstone treatment involves the use of chemicals to lighten or remove undesirable color from a gemstone. This process is commonly employed to enhance the appearance of stones that may have natural colorations considered less desirable for the jewelry market. By using specific chemical agents, gemologists can achieve a more uniform and aesthetically appealing coloration, thereby increasing the stone's value.

This treatment is particularly applicable to certain types of stones that can take on a new appearance after the bleaching process, which ultimately enhances their marketability. It's important to note that while bleaching can improve the visual appeal of colored stones, it should be transparently disclosed to potential buyers, as this treatment can affect perceptions regarding natural beauty and authenticity.