Square-cut or Asscher-cut, diamonds are a popular diamond shape that are characterized by a step cut. This cut results in less light return when compared to their more brilliant alternatives, but offers a more vintage appeal. Square-cut diamonds feature cropped corners, which give it a unique, almost octagonal shape. Square-cut diamonds became very popular during the 1920s and as a result, are a desirable diamond cut for a vintage looking engagement ring.
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.