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.

2. use fire.

Is to burn platinum with fire and then knock it with your hands. If you can hear the voice of "Toto", then such platinum must be genuine, but if you can hear the particularly crisp voice of "Tintin", it is not completely platinum, but inferior.

No matter where you buy Chow Tai Fook's things, the most basic thing should be its own unique product number. (The same product number cannot be duplicated) There is a product guarantee.

You can take a necklace with a guarantee and check it in domestic stores. Flagship store is preferred. If it is found that the serial number has been sold and the picture is consistent with the real thing, it proves that there is no problem with the goods.

Extended data:

Chow Tai Fook Jewelry Gold Co., Ltd. is a wholly-owned subsidiary of Chow Tai Fook Group, specializing in Chow Tai Fook brand jewelry, jade and gold ornaments. Is a comprehensive enterprise integrating raw material procurement, production design and retail service. With a history of more than 80 years, it is the most famous and largest jewelry brand in China and Hongkong.

Chow Tai Fook Jewellery is one of 78 witnesses of British DTC, the world's largest rough diamond supplier, and orders directly with natural rough diamonds. It is the first diamond dealer in Greater China to win this honor, and its status is detached.

References:

Chow Tai Fook's gold pendant turned white, and it was suspected that selling fake gold failed in two years and four inspections-People's Daily Online