Below are a few things you might not know about heart shaped diamond engagement rings. Even though experiments with the heart-shaped diamond rings began more than 100 years ago, manufacturers and experts failed to create this elegant a fancy diamond shape for a very long time. It eventually took the help of laser cutting tools and computer models to create this shape. You might be a little bit surprised to hear that the heart shape of the diamond actually started out as just a pear cut. Professional cutters modified the top of the cut and made a few slight adjustments to perfect a magnificent heart shape for the precious gem. In addition to that, you should also note that most of the heart-shaped diamonds engagement rings usually have 58 facets. However, some of the heart shape diamonds have 57 or 59 facets based on the shape and overall size of the heart.