Generally speaking, gold in China mainland and Hongkong is relatively cheap, at least tens of yuan per gram, close to 10%, with high cost performance. Moreover, gold is easy to carry and not too heavy, so it is not difficult to buy it through customs. In the case of the same global gold price, the price in Hong Kong is so cheap because they have no value-added tax and customs duties. Moreover, many gold chain stores, such as Chow Tai Fook, Golden Supreme and Zhou Shengsheng, are headquartered in Hong Kong, and the gold bought in Hong Kong will be as good as new in a few years, while the gold bought in Chinese mainland will be darker in a few years. Hong Kong is very strict with gold, basically 999.9, and 990 on the mainland. Therefore, even in the same store, the goods in the shops in Hong Kong are all affordable and the styles are more diverse. For things that you only buy once in your life, of course, you can buy them here if you have the conditions. I will leave a good souvenir in the future, thinking that I bought it after I went to Hong Kong. Seems more meaningful.

Gold jewelry is the cheapest in Shenzhen, and gold jewelry in jewelry stores all over the country is basically wholesale from Shenzhen. Many provincial capital cities will have secondary wholesalers. Gold in Shenzhen is traded at the international gold price. If you need to buy a lot of gold, you'd better buy it in Shenzhen, which can save tens of dollars per gram.

The purity of gold and its products is called success or fineness.

More than 200 years BC, the Greek mathematician Archimedes worried about judging whether a crown was made of pure gold. When he was taking a bath in the bathtub, he discovered what later generations called Archimedes' law of specific gravity: an object immersed in a liquid was subjected to upward buoyancy; Buoyancy is equal to the weight of the liquid it displaces. Thereby successfully confirming whether the crown made by the king is made of pure gold. So, how to express the purity of gold?

1. Use "k gold" to indicate the purity of gold.

According to the national standard GB 1 1887-89, the gold content of each opening (abbreviation for carat in English, karat in German, often written as "K") is 4. 166%. Therefore, the gold content of each opening is (GB in brackets):

8k=8*4. 166%=33.328%(333‰)

9k=9*4. 166%=37.494%(375‰)

10k = 10 * 4. 166% = 4 1.660%(4 17‰)

12k = 12 * 4. 166% = 49.992%(500‰)

14k = 14 * 4. 166% = 58.324%(583‰)

18k = 18 * 4. 166% = 74.998%(750‰)

20k = 20 * 4. 166% = 83.320%(833‰)

2 1k = 2 1 * 4. 166% = 87.486%(875‰)

22k = 22 * 4. 166% = 9 1.652%(9 16‰)

24k = 24 * 4. 166% = 99.984%(999‰)

24k gold is often regarded as pure gold, which is "1000‰", but the actual gold content is 99.99%, which is converted into 23.988k.

2. Use language to express the purity of gold

Some gold ornaments are marked with words, and their provisions are as follows:

Pure gold-the gold content is not less than 990‰

Thousands of pure gold-the gold content is not less than 999‰

Others are directly marked with the actual gold content.

3. Use fractions to express the purity of gold.

If marked as 18/24, the color is 18k(750‰).

If marked as 22/24, the color is 22k(9 16‰).

4. Use Arabic numerals to indicate the purity of gold.

For example, 99- means "pure gold"

For example, 999 means "thousands of gold"