Look at the label card: each piece of jewelry should be engraved with a chemical composition stamp, such as (pt 900) and (PT 750). All stamps starting with "PT" are platinum ornaments: platinum is tin white, that is, white with gray and shiny.

Chow Tai Fook Jewelry Group Co., Ltd. (hereinafter referred to as "the Group"); HKEx (stock code: 1929) was listed on the main board of HKEx on February 20 165438, with the vision of becoming the most reliable jewelry group in the world.

The iconic brand "Chow Tai Fook" was founded in 1929 and is famous for its product design, quality and value. The success of the group and its iconic brands, from the long history of more than 90 years, reflects the persistent persistence in innovation and technology, as well as "sincerity?" Eternity. " ?

Chow Tai Fook Baidu Encyclopedia (baidu.com). ?