During the re-inspection, you can first observe the appearance of gold and check whether it has obvious damage or defects. At the same time, use an accurate electronic scale to weigh gold and verify whether its weight is consistent with the weight on the purchase time stamp. In addition, hardness testing is also an important link. Gold has a certain hardness, and professional hardness testing instruments can be used to test whether its hardness meets the standard.
However, the above methods can only provide a preliminary judgment, and the most reliable way is to find a reputable professional testing institution for testing and identification. These institutions have professional equipment and experience, and can conduct a comprehensive test of gold, including the purity and composition of gold, so as to ensure the authenticity and reliability of the purchased gold.
Gold buying skills
1. Choose formal channels to buy gold: You can choose formal channels such as banks and jewelry stores to avoid buying fake and shoddy products.
2. Pay attention to the purity of gold: the purity of gold is generally expressed in one thousandth. For example, 990 indicates a purity of 99.0%. Generally speaking, the higher the purity, the higher the value of gold.
3. Pay attention to the weight of gold: the price of gold is calculated by weight, so pay attention to the weight units of gold, such as grams and ounces.
4. Pay attention to the style and craft of gold: different styles and crafts will affect the price and collection value of gold, and you can choose according to your own preferences and needs.
5. Pay attention to the trend of gold price: When buying gold, pay attention to the trend of international and domestic gold prices and choose the right time to buy.