Why the oval? There are several reasons that people love oval-cut diamonds. First, they can appear larger than rounds of equivalent weight, depending on how they were cut. Second, an oval can make your finger look longer and slimmer, which is a factor that many people take into account. Third, diamonds with rounded silhouettes are less likely to get chipped or broken than shapes with corners. Finally, many people simply find the shape aesthetic more interesting, distinctive or pleasing than other shapes, personally, and that matters!