2. When boys wear gold necklaces, they should also be careful not to wear extra thick ones, which are neither delicate nor safe, but don't wear too thin ones, otherwise it will be easy to be feminine.

3. For metal necklaces, men can buy platinum and diamond necklaces. The color of platinum itself is the same as that of silver jewelry, so it is safer to wear and its properties are relatively stable. Some men who often exercise or swim will not change color when wearing platinum necklaces. You can wear it for a long time. In addition, necklaces made of jade and amber are also very popular with men.