
An expensive diamond is the one that is colorless or near colorless, has no or very few invisible flaws inside of it, and it has high clarity. It should also be well cut with many facets on its surface to reflect the light. Such a diamond is also of greater carat weight. This also means that even if the quality is little lower, the diamond is still great for engagement rings. Thus, you can always opt for the quality engagement rings if you do not have much money to spend.