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.
Oval diamonds are popular choice for engagement rings because they offer great fire and brilliance. Similar to round diamonds in their light return, oval-cut diamonds are known for their unique shape and aesthetic appeal. This diamond shape has an additional advantage of appearing larger than its actual carat size because of its elongated shape. When set in engagement rings, oval-cut diamonds serve to elongate fingers, which gives them an air of grace and elegance.