A beautiful addition to your collection of fine jewelry, this aquamarine and black diamond halo ring sparkles in lustrous white gold. The ring features a cushion-cut (6mm) aquamarine gemstone in the center, while a total of 36 round-cut, buttercup-set black diamonds shimmering along the sides. Black diamonds are denser and weigh more than white diamonds. Therefore, black diamonds may appear substantially smaller than white diamonds of the same carat size.