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Many people envision a big diamond for their engagement ring. Whether it’s a 1 Carat or 3 Carat diamond, they have their eyes set on a large stone. But a diamond’s size isn’t the only thing that matters. In fact, it’s most important to choose a diamond that has an excellent cut. When a diamond’s facets and proportions are optimal, more light reflects off of the table—causing the diamond to shine. In other words, a smaller well-cut diamond will radiate far more than a large lifeless diamond.
Unfortunately, some jewelers are too focused on getting you to buy a diamond, even when it’s not a smart choice. That’s how spready diamonds originated—the stones look larger, even though they lack sparkle.
Here we discuss what spread diamonds are and how best to evaluate a diamond’s cut for maximum beauty.
Spread diamonds, also known as “spready” diamonds, are shallow-cut diamonds. They look larger than other diamonds of their same carat weight. For example, with a spread diamond, the table is wider and the depth is shallower than the recommended cut parameters.
The larger “spread” of these diamonds may seem more appealing at first, but it’s important to look closely at the cut quality of the diamond. While the diamond might look larger, it lacks sparkle, beauty and value.
When a diamond is cut too shallow, light hits the pavilion at a low angle. In these cases, light travels through the diamond and escapes out the sides, instead of reflecting back through the table to your eyes.
While spready diamonds appear large, the majority of the light exits out the bottom—reducing the brilliance and beauty. A shallow diamond means the facets aren’t angled to bounce light optimally and create sparkle.
A diamond’s cut refers to how well proportioned it is. The cut determines the table size, width, depth, facets, scintillation and more. That’s why diamond cut is so important: it dictates the beauty and brilliance of the stone.
For any diamond shape, we recommend selecting an excellent or ideal cut diamond. These are the highest grading options for cut quality.
The grade’s just a starting point, though. You want to review each diamond individually. Look at the diamond with high-quality imagery and review the specs on the certificate.
For round diamonds, to maximize brilliance, keep the depth percentage below 62.5% and the table percentage below 59%. Here’s an example of a beautifully cut round diamond. The table, facets and proportions are cut to maximize brilliance—giving it its signature sparkle.
For fancy shapes, like the pear or marquise, it’s usually more difficult to determine if the diamond is well-cut. Besides looking closely at the stone, enlist the help of an expert. We’ll review the diamond for you and let you know if the diamond is well-cut.
When making a decision on a diamond, it’s important to weigh the advantages and disadvantages. Here are a few details that can help you make a decision on a spread diamond engagement ring.
Pros of Spready Diamonds
Cons of Spready Diamonds
Most spread diamonds are graded with a poor cut. That’s why we encourage you not to buy spready diamonds, and instead opt for a smaller stone with plenty of sparkle and character.
Spread diamonds might seem like a great buy because they look larger than other diamonds of the same carat weight. But they are cut too shallow to offer brilliance and sparkle. Light leaks out, rather than reflecting back to your eye. That’s why we strongly recommend staying away from spread diamonds.
Even if you purchase a lower carat weight stone, like a 0.71 carat diamond ring like this, you’ll have far more beauty than buying a large, dull diamond. With a well-proportioned stone, you’ll have a ring that sparkles for years to come.
There’s a lot to know about diamonds, and we’re here to help.
Here are the answers to commonly asked questions about diamonds. For one-on-one assistance, please contact our experts.
The size of a diamond is determined by a few factors: its carat weight, shape and how the stone is cut. In general, the marquise diamond has the largest surface area of any diamond shape. Pear shaped diamonds and oval cut diamonds also look larger because of their elongated design.
It’s important to remember that a heavier carat weight doesn’t mean a larger sized diamond.
Cushion cut and Asscher cut diamonds look the smallest because they’re deep cut stones with small surface areas. Compared to other shapes, a lot of their carat weight falls below the surface where it goes unseen.
Round brilliant cuts offer the most sparkle of any diamond shape. They’re cut with 58 facets that all reflect light off of the diamond’s table to your eyes. For over 100 years, diamond cutters have perfected the round diamond cutting process to maximize brilliance.
The oval, marquise and pear-shaped diamonds are runners-up to the round cut in terms of sparkle. These shapes are designed to allow the majority of light to be reflected off of their tables.
The most expensive diamond shape is the round cut diamond. Firstly, when round diamonds are cut, a significant amount of the rough stone is removed. The lower yield means a higher price because more rough stone is needed. Secondly, the round cut’s popularity boosts its price. Approximately 75% of all diamonds sold are round cut diamonds. Thirdly, the unmatched sparkle and beauty of a round cut warrant its higher price.
Round cut diamonds are the most popular diamond shape. Approximately 60% of all engagement rings feature a round cut diamond and approximately 75% of all diamonds sold are round cuts.
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