A Look into the ‘Poor’ Cut Grade (2024)

A Look into the ‘Poor’ Cut Grade (1)

Poor cut refers to the quality of the cut of a diamond. The cut of a diamond is one of the four Cs (along with clarity, color, and carat weight) that are used to determine its value. The cut of a diamond refers to the way the diamond has been cut and polished to enhance its beauty and maximize its brilliance and sparkle.

A poor cut means that the diamond has been cut in a way that does not optimize its potential for sparkle and brilliance. This can happen for a number of reasons, including:

The diamond was cut too shallow or too deep. A diamond that is cut too shallow will have a large table (the flat top surface of the diamond) and a small culet (the bottom point of the diamond). This will result in a diamond that appears dull and lacks sparkle. On the other hand, a diamond that is cut too deep will have a small table and a large culet. This will cause the light to leak out of the sides of the diamond, resulting in a diamond that appears dark and lifeless.

The diamond has an uneven or asymmetrical shape. A diamond that is not symmetrical will not reflect light evenly, resulting in a diamond that appears dull and lacks sparkle.

The diamond has poor proportions. The proportions of a diamond refer to the way the different parts of the diamond (such as the table, crown, girdle, and pavilion) are balanced and proportioned in relation to each other. Poor proportions can result in a diamond that lacks sparkle and brilliance.

In general, a diamond with a poor cut will not have the same level of sparkle and brilliance as a diamond with a good cut. This can make the diamond appear less attractive and valuable. As a result, diamonds with a poor cut are typically less valuable than diamonds with a good cut.

5 Reasons To Consider Buying One

  1. Affordability: Poor cut diamonds are usually priced lower compared to diamonds with better cut grades. If you have a limited budget and prioritize size over sparkle, a poor cut diamond might allow you to get a larger carat weight within your price range.
  2. Vintage Appeal: Some individuals appreciate the charm and character of vintage or antique-style jewelry, which may feature diamonds with poorer cut grades. These diamonds can have a unique and nostalgic aesthetic that appeals to vintage enthusiasts.
  3. Personal Preference: Beauty is subjective, and some individuals may prefer the appearance of diamonds with less sparkle and more subdued brilliance. If you have a personal preference for a different look or style, a poor cut diamond may align with your taste.
  4. Experimental Jewelry: If you’re interested in experimenting with diamond cutting or jewelry design, purchasing a poor cut diamond could provide an opportunity to explore and practice your skills. It can be a more affordable option for learning and honing your craft.
  5. Repurposing or Recutting: In some cases, a poor cut diamond can be repurposed or recut into a different shape or style by a skilled jeweler. If you have a specific design idea in mind or if you’re looking for a unique project, a poor cut diamond could serve as a starting point for customization.

7 Reasons Why A Better Cut Quality Is A Better Choice

  1. Superior Brilliance: A well-cut diamond reflects light more effectively, resulting in enhanced brilliance, fire, and sparkle. It maximizes the diamond’s ability to reflect and refract light, creating a stunning display of light performance.
  2. Increased Sparkle: A better cut quality allows for optimal light dispersion, resulting in increased sparkle and scintillation. The diamond will exhibit more flashes of light and captivating sparkle, catching the eye from every angle.
  3. Enhanced Beauty: A well-cut diamond showcases its inherent beauty to the fullest. It reveals the diamond’s true potential, enhancing its natural color and clarity, and creating a visually striking and captivating appearance.
  4. Improved Symmetry and Proportions: Better cut diamonds are crafted with precise symmetry and proportions, ensuring that all facets are aligned and balanced. This attention to detail creates a more harmonious and aesthetically pleasing diamond.
  5. Maximizes Size Perception: A diamond with a better cut can create an illusion of a larger size. The well-proportioned facets and optimal light performance make the diamond appear more substantial and visually appealing.
  6. Long-Term Investment: Diamonds with better cut grades retain their value better over time. A well-cut diamond is highly sought after, and its superior beauty and quality make it a valuable and timeless investment.
  7. Exquisite Craftsmanship: Diamonds with better cut grades are often the result of skilled craftsmanship and precision. Choosing a diamond with excellent cut quality ensures that you are investing in a piece of jewelry that has been expertly crafted and showcases the artistry of diamond cutting.

Generally Not Recommended

Poor cut diamonds are generally not recommended due to several key factors. One significant drawback is their lackluster appearance. Poorly cut diamonds fail to exhibit the captivating brilliance, fire, and sparkle that make diamonds so desirable. Their proportions and symmetry are off, resulting in a dull and lifeless look. Light leakage and misalignment of facets contribute to a dim and less vibrant appearance.

In addition to their diminished visual appeal, poor cut diamonds also suffer from reduced light performance. The misalignment of facets and improper proportions hinder the diamond’s ability to reflect and refract light optimally. This leads to a significant loss of sparkle and brilliance, which are key elements in showcasing a diamond’s beauty.

Not only do poor cut diamonds fall short in terms of aesthetics, but they also tend to have lower value compared to well-cut diamonds. The market values well-cut diamonds more highly due to their superior visual appeal and light performance. Poor cut diamonds may be harder to sell and command lower prices in the resale market.

Furthermore, poor cut diamonds can present size perception issues. Their irregular proportions and unbalanced shapes can make them appear smaller than their actual carat weight. This can impact the perceived value and overall aesthetic of the diamond.

Choosing a poor cut diamond means missing out on the stone’s full potential. Diamonds are naturally formed with inherent beauty, but a poor cut fails to unlock their true brilliance and fire. Investing in a diamond with a poor cut results in missed opportunities to showcase the stone’s unique qualities.

Ultimately, opting for a poor cut diamond can lead to disappointment and regret. Diamonds are meant to be cherished for their stunning visual qualities. By prioritizing cut quality, one can ensure maximum beauty, sparkle, and overall satisfaction with their diamond purchase.

A Look into the ‘Poor’ Cut Grade (2024)


How do you determine cut grade? ›

A trained gemologist determines a diamond's quality of cut based on its brightness, fire, scintillation, and proportions. The depth, culet, table, and girdle of diamonds with a higher cut quality will be more perfectly proportioned, symmetrical, and polished.

What is the cut grade on the GIA report? ›

The GIA assigns the cut of a diamond one of the following grades:
  • Excellent (the best grade)
  • Very Good.
  • Good.
  • Fair.
  • Poor (the worst grade)

What are the 4 C's of a diamond? ›

The 4Cs, are the globally accepted standard for assessing the quality of a diamond —color, clarity, cut and carat weight.

What is the best cut in GIA? ›

The GIA Cut Grading System applies to the most popular cutting style – the standard round brilliant – and all clarities across the D-to-Z color range. There are five cut grades: Excellent (EX), Very Good (VG), Good (G), Fair (F) and Poor (P). A diamond with an Excellent cut grade is very bright.

What is a cut grade? ›

Diamond cut is essentially all about how well the facets of the diamond interact with light. A cut grade is given only to a round brilliant diamond. Being the most sought-after diamond shape, GIA has spent decades developing a system to grade the cut quality of round diamonds.

Is VS1 or VS2 better? ›

​ ​VS1 is higher than the VS2 grade. The only difference between the two is a VS2 diamond's impurities can be easier to spot than those in a VS1. Imperfections in a VS2 grade diamond are similar in size and quantity to those in a VS1.

Why doesn't my GIA report have a cut grade? ›

For fancy shaped diamonds we examine each diamond and assign our own cut grade based on our own visual examination of the diamond and its polish, symmetry and visual brilliance qualities. Where no cut grade is shown for a particular fancy shape diamond, we are in the process of evaluating that diamond.

Why is there no cut grade on my GIA report? ›

GIA grades all polished diamonds regardless of shape or brand. However, we are only able to issue a cut grade for a D-to-Z color standard round brilliant diamond.

Can GIA grade my diamond? ›

You can send your diamond to GIA for grading and analysis. Many consumers send the diamond through a retailer for packaging, shipping and insuring the item. A jeweler will have to remove your diamond from its setting, since GIA Diamond Grading Reports are only issued for unmounted stones.

How to judge diamond quality? ›

Diamond professionals use the grading system developed by GIA in the 1950s, which established the use of four important factors to describe and classify diamonds: Clarity, Color, Cut, and Carat Weight. Diamonds can be fashioned into a variety of shapes and still be beautiful. These are known as the 4Cs.

Which diamond cut gives the most sparkle? ›

The round diamond cut has the perfect number of facets and offers complex results. These facets interplay to produce exceptional brilliance, reflecting light by themselves to produce a magical sparkle. Therefore, the most brilliant, or sparkliest, diamond cut is the brilliant round cut.

What is the most expensive diamond? ›

The most expensive diamond with a monetary valuation is The Cullinan Diamond. Only The Kohinoor diamond is considered more valuable, but it has no price tag and is simply considered “priceless.”

Which diamond cut makes diamond look bigger? ›

Best Diamond Shapes for a Big Look

Diamond shapes that carry more of their mass toward the table, or top, of the diamond will look much larger per carat when compared with other shapes that have the mass more evenly distributed. The ones that carry mass at the top are marquise, pear, and oval cut diamonds.

What is the smallest diamond GIA will certify? ›

GIA Labs don't certify small diamonds (less than 0.15 pt currently ). The main reason for this is the cost. A ring with 100 diamonds would have 100 certificates!

What diamond cut is the prettiest? ›


By far the most popular cut is the Round Brilliant, with it's fifty-seven perfectly aligned facets it's brilliance really does out-shine the others. Total internal reflection is the key here; light travels through the stone giving optimum sparkle and scintillation.

How to tell if a diamond is ideal cut? ›

Ideal. An Ideal cut diamond's proportions must be within the ideal range, and polish and symmetry can each be one less than the highest grade. To the untrained eye, an Ideal diamond is just as beautiful as a Super Ideal diamond of the same color and clarity.

How to assess diamond cut? ›

The system takes into account seven factors: brightness, fire and scintillation (appearance based aspects) and weight ratio, durability, polish and symmetry (craftsmanship aspects). The cut grade is rendered by comparing measurements to predefined grading tables based upon GIA's extensive research.

Is a very good cut diamond ok? ›

Overall, and regardless of the laboratory behind the report, Very Good means the diamond is not of perfectly ideal proportions but is still of high quality. Very Good graded diamonds will experience some degree of light loss.

What is a cut score for diamonds? ›

The cut score takes a round diamond's depth %, table %, girdle thickness, pavilion angle, crown angle, and other dimensions to determine how perfectly the diamond will reflect light (and sparkle). You can check the cut score of any GIA or IGI certified round diamond using our diamond check tool.

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