1, natural jade foundation: Chow Tai Fook's chalcedony is made on the basis of natural jade. Natural jade is a mineral crystal formed underground for a long time, which has been formed naturally for millions of years. Chow Tai Fook chooses suitable natural jade as raw material, and then cuts it to make chalcedony jewelry.

2. Manual treatment: In order to achieve the expected appearance and texture effect, Chow Tai Fook manually treated the natural jade. This includes polishing, grinding, dyeing and heating. These treatments aim to make the color, transparency and texture of jade more beautiful and attractive, and at the same time improve its physical properties.