Diamond Cut

In the world of diamonds, the "Cut" is a critical factor that directly impacts a diamond's beauty and overall appeal. It refers to the proportions, symmetry, and polish of a diamond, as well as the arrangement and quality of its facets. A well-cut diamond will exhibit exceptional brilliance, sparkle, and fire, captivating the eye with its radiance.

Diamond cuts are graded on a scale ranging from Excellent to Poor, with each grade reflecting the quality of the diamond's cut. Diamonds with an Excellent cut are meticulously crafted to maximize light performance, while those with a Poor cut may lack brilliance and appear dull.

Importance of Diamond Cut

The diamond cut plays a pivotal role in determining a diamond's brilliance and overall appearance. A well-cut diamond reflects light in a way that maximizes its sparkle and fire, captivating the eye with its luminous beauty. Conversely, a poorly cut diamond may appear dull and lackluster, diminishing its allure. The precision and craftsmanship of the cut directly influence the diamond's ability to interact with light, highlighting its clarity and color. Understanding the significance of cut quality empowers customers to make informed decisions when choosing their desired diamond, ensuring they select a piece of jewelry that radiates elegance and sophistication.

How Diamond Cuts Are Evaluated?

When evaluating diamond cuts, it's essential to understand how light interacts with them, determining their brilliance, fire, and scintillation. The Gemological Institute of America (GIA) pioneered a comprehensive grading system, examining factors like proportion, polish, and symmetry. This scale ranges from Excellent to Poor, providing a standardized assessment of a diamond's quality.

Different institutes may have their own terminology for grading diamond cuts. For instance, the International Gemological Institute (IGI) includes an Ideal rank above Excellent. At Brilliant Earth, we utilize a scale based on the specifications provided by the certifying gemological laboratory. Our scale ranges from Super Ideal to Poor, allowing customers to discern subtle differences in cut quality and pricing. By understanding these grading systems, customers can confidently navigate the diamond market and select the perfect stone for their needs. Whether it's a GIA-certified diamond with an Excellent cut or a Super Ideal diamond on our site, our aim is to provide transparency and guidance throughout the purchasing process.

Diamond Cut Characteristics

To comprehend the cut grade of a diamond, it's vital to grasp key characteristics that collectively define a high-quality cut. These include proportions, symmetry, polish, depth, table size, and girdle thickness. Evaluating these factors ensures the diamond exhibits optimal brilliance, fire, and scintillation.

Diamond Cut Grades

we provide insights into the grading systems used to assess the quality of diamond cuts. From the Gemological Institute of America (GIA) to other independent institutes, learn about the criteria used to evaluate diamonds and understand the significance of cut grades in determining a diamond's brilliance.

Super Ideal

Super Ideal diamonds represent the pinnacle of quality. These diamonds boast top grades in proportion, polish, and symmetry, known as Triple Excellent by esteemed institutes like GIA/IGI. Renowned for their exceptional sparkle, Super Ideal diamonds are the epitome of luxury and elegance, ensuring a breathtakingly beautiful appearance in any setting.


we offer Ideal cut diamonds that meet strict criteria for proportions, polish, and symmetry. While not achieving the highest grade in all aspects like Super Ideal diamonds, Ideal diamonds still exhibit exceptional beauty and sparkle. To the untrained eye, an Ideal diamond rivals the beauty of a Super Ideal diamond of the same color and clarity.

Very Good

Very Good cut diamonds, which feature proportions slightly outside the ideal range. While their polish and symmetry can vary from high grades to moderate levels, these diamonds still exhibit impressive sparkle. They provide excellent value, combining quality craftsmanship with affordability, making them a popular choice for discerning customers.


Good cut diamonds, providing a balance between quality and affordability. While their proportions may be slightly imperfect, Good cut diamonds still reflect ample light, though not as brilliantly as higher-cut grades. Despite this, they offer a more accessible price point, making them a practical choice for those seeking value without compromising too much on quality.


Fair cut diamonds offer a budget-friendly option, but they may lack the sparkle of higher-grade diamonds due to less effective light refraction. These diamonds may exhibit gray areas around the crown or dullness within the table or girdle. While Fair cut diamonds are more affordable, their diminished brilliance may not meet everyone's expectations.

Beauty of Engagement Ring

Explore our exquisite, lab-grown diamond engagement rings.

Fancy Diamond Cut

we delve into the intricacies of how the facets of a diamond are meticulously cut. Understanding this process is crucial as it directly influences the diamond's brilliance and overall appearance. Remember, while shape guides the cut, they are distinct aspects of diamond craftsmanship.

Round Brilliant Cuts

Round brilliant cut diamonds are the epitome of timeless elegance, renowned for their unparalleled sparkle. With precisely angled facets ranging from 57 to 58, these diamonds maximize light reflection, creating a dazzling display of brilliance, fire, and scintillation

Fancy Cuts

we offer Ideal cut diamonds that meet strict criteria for proportions, polish, and symmetry. While not achieving the highest grade in all aspects like Super Ideal diamonds, Ideal diamonds still exhibit exceptional beauty and sparkle. To the untrained eye, an Ideal diamond rivals the beauty of a Super Ideal diamond of the same color and clarity.

  • Modified Brilliant Cuts :
  • you'll find diamonds altered from the traditional round shape, such as pear, marquise, cushion, oval, and heart cuts. These variations offer unique styles and appearances while maintaining the brilliance of the brilliant cut.
  • Step Cuts :
  • Step-cut diamonds feature rectangular facets, offering a distinct appearance. While they may exhibit less brilliance and fire compared to Brilliant cuts, they exude a unique elegance. Examples include emerald, asscher, and baguette diamonds, each known for their sophisticated allure and sleek lines.
  • Rose Cuts :
  • we feature diamonds with relatively flat lower halves, imparting a unique charm. Though lacking the brilliant sparkle of other cuts, rose cuts offer a distinct, vintage appeal. While round diamonds are most common, any shape can be fashioned into a rose cut.

Diamond Cut FAQs

What is the best cut for fancy diamonds?

The ideal cut for fancy diamonds often depends on personal preferences and style. However, some popular choices include the pear, marquise, and oval cuts. These cuts are celebrated for their elegant shapes and versatility, making them suitable for a wide range of jewelry styles.

Determining the most impressive diamond cut is subjective and can vary based on individual tastes. However, cuts like the round brilliant, princess, and cushion cuts are often revered for their exceptional brilliance and sparkle, captivating admirers with their mesmerizing play of light.

Fancy diamond grades typically follow similar criteria to traditional diamond cuts, focusing on factors such as proportion, symmetry, and polish. These grades help assess the overall quality and beauty of fancy-shaped diamonds, providing consumers with valuable insights into their purchase decisions.

The best diamond cut is subjective and depends on various factors, including personal preferences, budget, and desired characteristics. While some may prefer the classic brilliance of a round brilliant cut, others may gravitate towards the unique allure of fancy-shaped diamonds like the emerald or pear cuts.

The most expensive diamond cut can vary depending on factors such as rarity, demand, and market trends. Generally, cuts that maximize brilliance and exhibit exceptional craftsmanship, such as the round brilliant and emerald cuts, tend to command higher prices.

The diamond cut that appears the most shiny or sparkly is often the round brilliant cut. Renowned for its ability to reflect light beautifully due to its numerous facets, the round brilliant cut consistently dazzles with its breathtaking brilliance.

While all diamond cuts are durable, certain shapes like the round brilliant and princess cuts may be less prone to chipping or damage due to their design and facet arrangement. However, the durability of a diamond ultimately depends on its quality and how well it is cared for.

The rarest diamond cuts are often those that are less common in the market, such as heart-shaped or Asscher-cut diamonds. These unique cuts may be sought after by collectors or enthusiasts due to their scarcity and distinctive beauty.

A royal cut diamond typically refers to a specific style of diamond cut characterized by its regal and elegant appearance. It may include cuts like the cushion, emerald, or Asscher cuts, which exude sophistication and luxury fit for royalty.

The oldest cut of diamond is the rose cut, dating back to the 16th century. This antique cut features a flat base and a domed crown with triangular facets arranged in a symmetrical pattern, creating a subtle yet captivating sparkle reminiscent of a blooming rose.