EllipsoidThe Ellipsoid is unique in that the outside is a square profile ellipse, while the inner surface is one continuous elliptical curve. The resulting intersection of these two shapes is stunning, and it also makes for a comfortable ring. The ring shown has the inner curve in a polished finish and the outer surface in a brushed finish for contrast. The stone shown is 6mm. Check the Special Styles section for a Companion ring for Ellipsoid.