The diamond's shape pertains to its silhouette, defining the external outline of the stone – it's what you see when you look at it. Diamond cut is a more intricate aspect, referring to the precise balance of proportion, symmetry, and polish achieved during the diamond cutting process. It's important to understand the difference between diamond shape and diamond cut, even though many jewelers use these terms interchangeably.
While it's easy to spot the shape just by looking at the diamond's outline, recognizing a well-cut diamond takes a trained eye. The cut is crucial because it affects how the diamond reflects light and sparkles. Gem experts evaluate the cut using seven factors: brightness, sparkle, overall appearance, size in relation to weight, durability, smoothness, and symmetry. These factors combine to determine how the diamond looks when light hits it. Learn more about these intricacies in our Diamond Cut Guide.