Zhang Wanfu has a good reputation. If you really have doubts, you can go to the National Jewelry Quality Supervision and Inspection Center to check the authenticity.
Cheung Man Fook Jewelry Co., Ltd. was established in Hong Kong in 1989. It is a comprehensive private enterprise integrating jewelry design, manufacturing, sales and after-sales business. Zhang Wanfu always adheres to the business philosophy of "integrity, innovation, enterprising, cooperation, and win-win", and takes "providing the highest quality products and the most enthusiastic services as the purpose of "it is better to lose a thousand gold than to lose a trust", and has won the majority of customers. It is loved by consumers and has received many honors and titles from government departments, industry associations, consumer associations and other institutions. In 2002, with the rapid development of the domestic jewelry industry, Zhang Wanfu Jewelry established its domestic headquarters in Shenzhen; in 2006, Zhang Wanfu Jewelry officially landed in central China and moved its headquarters to Changsha; and in 2010, it won the famous Chinese trademark.
How to initially judge the authenticity of gold?
1. Look at the color
The old jargon "seven green, eight yellow, ninety-five red, yellow and white with gray and half gold" describes the purity of gold. According to the different luster and color of gold You can roughly distinguish between pure gold, K gold, real gold and fake gold. If the color is green and white, the purity is not high, while if the color is red or yellow, the purity is high.
2. Look at the marks
Gold jewelry sold on the market should be equipped with inspection marks from quality inspection agencies according to regulations, clearly indicating the gold content and weight of the jewelry. 999.9 gold is called ten thousand pure gold, and its gold content shall not be less than 999.9‰; 999 gold is called thousand pure gold, and its gold content shall not be less than 999‰.
3. Look at the hardness
Gold with a high gold content is generally soft and deformed when bent. After bending pure gold jewelry two or three times, fish scales will appear at the bends. The texture of the style; pure gold jewelry feels hard when bent, and the fish scale pattern is not obvious; gold jewelry with more impurities will break after being bent two or three times. If it is made of raw gold, it will break when bent, and the cross section will have an obvious sandy shape.
4. Listen to the sound
If gold with a gold content of more than 99% is thrown on a hard ground, it will make a clicking sound, which is soundless and has no elasticity. The sound of fake or low-quality gold is crisp but not dull. It usually makes a "clang" sound, with lingering sound after landing and beating violently.
5. Weigh the weight
Gold is small and heavy. Weigh it with your hands to see if the size is commensurate. Generally, gold jewelry is weighed in your hands. If it feels a little heavy, It can be perceived that it is real gold jewelry, but its large shape and light weight may be adulterated. You should be wary of bulky and light jewelry and carefully identify whether it is fake or semi-fake.