Pear-Shaped Diamonds are typically a combination of a round and a marquise shape. A quality Pear diamond ought to have very good or excellent symmetry, and the point of the diamond should be in line with the apex of the rounded end. A pear-shaped diamond should be set with a prong at the point of the stone – this ensures that most flaws and inclusions will be covered by a prong. Pear diamonds typically contain 58 facets, which allows light to pass through the diamond much in the way light passes through a round diamond.
A marquise-cut diamond is considered a classic diamond shape because it compliments any engagement ring. When selecting a marquise diamond, color and clarity are the two most important aspects to consider. A marquise diamond is cut in a way that is similar to a round brilliant diamond, except the carat weight of the stone is maximized by lengthening it into its highly recognizable boat-shape. Unfortunately, because marquise-cut diamonds have such a distinctive elongated shape, imperfections and flaws are more pronounced than they are in traditional round brilliant diamonds.