There are many types of diamonds, so I do not know when elections election which is better, see ads seem almost to feel each diamond brand, but really want to choose when to buy a really suitable for their own, and mostvalue for money, but do not know that diamonds should be how to identify its fineness, so still very hesitant to buy, though, the sister originally bought the diamond Moreover, she has done some research on diamonds, soI bought her own experience give me some more constructive comments.