Customers need ample time to consider a number of things when they are looking to buy a unique diamond engagement ring for their loved one. Most of them usually focus on the 4 C’s and quality of the center stone and fail to pay attention to the metal alloy of the rings. However, it is important to realize that the metal in diamond rings play a crucial role in its overall appeal, value, and security, and choosing a wrong type of metal might even diminish the longevity and brilliance of a diamond ring.