In fact, what kind of ring to buy when you get married depends on your own preferences, as long as you two are happy. More people will buy diamond rings when they get married. Before buying, you can go online to see how to choose diamonds and how to distinguish between good and bad diamonds. Every diamond ring has a certificate. You can look at the certificate to see the quality of diamonds. As long as you buy it in a regular store, you won't be fooled. If you are really worried, you can take the diamond ring you bought to the local testing department for identification!