If you are planning to buy a round diamond engagement ring and are in a dilemma regarding which setting to go for, several ones can suit your personal style. Two of the popular ones are the following.     Solitaire Rings The most traditional and popular engagement ring setting out there is the round brilliant solitaire. Often, women go for a thin and delicate band to complement the single stone, which appears larger on the women-centric band. Yet, if you are looking to purchase a diamond ring for him, consider a thicker metal band for the solitaire. The center diamond is secure when metal setting cradle it in place. The eight prong setting makes sure modest light enters the gemstone through its bottom and sides for most brilliance. Double Halo Rings Another popular setting option will be a double halo engagement ring featuring a round diamond. The setting can feature pave or micro pave diamonds, around the center diamond, flashing with light and putting the attention on the center stone. It is one for intrigue and one that gives unrivaled brilliance with a round diamond center.