An oval cut is an elongated round: the brilliant facet plan stretched along one axis.
In more detail
It faces up larger than a round of the same weight. Ovals can show a bow-tie across the belly. GIA's oval guide says that many people prefer a length-to-width ratio of 1.30 to 1.50. Some oval designs qualify for the AGS Ideal Report by GIA.
On a grading report
No GIA cut grade; measurements as length × width × depth.
Related terms
- Fancy shape: A fancy shape is any diamond outline other than round, such as oval, pear, marquise, cushion, princess or emerald.
- Bow-tie: A bow-tie is a dark band across the belly of an oval, pear, marquise or other elongated stone. It is not an inclusion or a color: the facets there send little light back to the viewer.
- Length-to-width ratio: The length-to-width ratio of a fancy shape is its length divided by its width, both taken from the measurements.
- AGS Ideal Report by GIA: The AGS Ideal Report by GIA is a digital supplement to a GIA report. It gives the American Gem Society's light performance grade, and only AGS Ideal 0 stones get one.