The solitaire setting only has one single diamond that figures as the centerpiece of the ring. The prongs make sure that the center diamond is positioned in such a way that it catches the most light and brings out the most beautiful shimmer. A settlement with four prongs gives the diamond an angular shape, while a settlement with six prongs gives the diamond a rounder shape. You can create a unique and special effect by opting for a solitaire setting with a colored diamond or gemstone.