Of all the different diamond cuts, the modern round brilliant offers the best light performance. As a matter of fact, the round is also the most popular diamond shape. According to The Knot Engagement Ring Study for 2019 here is the breakdown of preference:
- 1Round Brilliant Cut = 47%.
- 2Princess or Square Cut = 14%.
- 3Oval Shape = 14%.
- 4Cushion Cut = 9%.
- 5Pear Shape or Teardrop = 5%.
Obviously, there are more diamond shapes than that. However, those are the most popular diamond shapes based on The Knot survey from 2019. Although this may be true, the majority of my clients seem to be looking for round brilliant ideal cut diamonds. Of course, this might be because that has been my niche for the past 35+ years.
At the same time, Brian Gavin Diamonds indicates that 90% of their clients purchase round diamonds. Under the circumstances, this is not really surprising since Brian Gavin is known for his expertise in cutting round diamonds. As a matter of fact, he is the only diamond cutter in the world with a patent for maximizing light performance in the modern round brilliant.
What Is The Most Popular Diamond Cut?
The most popular diamond shapes are pictured above for your reference. As a matter of fact, fifth-generation diamond cutter Brian Gavin cuts the first four shapes better than anybody else I know. Here is where to find those shapes on his site:
As a general rule, I'm going to search Brian Gavin first because the higher degree of optical precision produces a higher volume of light return. At the same time, it creates sparkle that is more vivid and intense..
As a matter of fact, I think that Brian Gavin sets the bar for light performance. Although that may be true, I'll still check the sites below just for the sake of doing my due diligence. After all, it's nice to have a variety of options to choose from when trying to make decision of this magnitude.
Although that may be true, you will also find that the cut quality dictates the light performance. With that in mind, I recommend that you focus on cut quality first and foremost. After all, the sparkle factor of the diamond will be apparent from across the room. While slight differences in carat weight, color, and clarity are hardly noticeable from across the dinner table.
The Best Places to Buy Diamonds Online:
In my experience, here are the best places to buy diamonds online:
Not only do these vendors have excellent reputations, they also offer an extensive inventory of diamonds in every shape. Let me know if you would like help searching for a diamond or if you have any questions. Our Diamond Concierge Service is Free to the Public.
Diamond Shape vs Cut:
In the first place, it is important to realize that the term "cut" may refer to the overall cut quality or the shape. While the idea of diamond shape is pretty easy to grasp, the subject of cut quality is more difficult.
As a matter of fact, the cut quality of your diamond will dictate the volume of light return and the intensity of the sparkle. Generally speaking, the offset for the crown and pavilion angle are the most critical components. However, the relationship between the table diameter and the crown angle will affect the sparkle factor. It can also affect the overall appearance of the diamond, especially in terms of the arrows pattern.
Needless to say that we have recommendations for each diamond shape. Therefore, we have created diamond buying guides for the most popular diamond shapes:
How Cut Quality and Shape Affect Price:
It's a little known fact that the cut quality can affect diamond prices by as much as sixty percent. That is because it can take up to 4X longer to achieve a higher degree of optical precision.
As a matter of fact, the characteristics of cut quality go well beyond what is revealed on the lab report. Needless to say, there is a lot more to buying a diamond than simply looking at the overall cut grade. With this in mind, you'll want to take the proportions of the diamond into account. But also, the degree of optical precision and light leakage. We use special reflector scopes to judge these factors of light performance:
Of course, you'll want to read each of those tutorials for an in-depth explanation of how to interpret the images. But, you'll also find specific recommendations for each shape in the diamond buying guides above. In addition, it's always a good idea to ask for our opinion before you buy!