This shape optimises carat weight, meaning that the drawn out and symmetrical shape can make it appear larger than round stones of a similar weight. The oval cut is also an ideal way to elongate shorter fingers and it has recently become fashionable to use as the centre stone for engagement rings.
A “bow-tie effect” occurs when light passing through the diamond casts a shadow across the central facets of the stone. This shadow can be reduced by altering the depth of the pavilion, and adjusting the angles of the table and facets to better diffuse light in the central area. This effect also occurs in the Pear, Marquise and Heart shapes.