4 Carat Diamond Ring Price: How Much Does it Cost?

4 Carat Diamond Ring Price: How Much Does it Cost?

Are you curious about the price tag attached to a splendid 4-carat diamond?

Rest assured, for you have arrived at the ideal destination!

Within this comprehensive compendium of Twirl Weddings Knowledge, I shall delve into a myriad of subjects encompassing:

  • The fundamental determinants that influence the financial worth of a diamond
  • The correlation between diamond shape and its monetary value
  • Valuable recommendations to economize while acquiring a 4-carat diamond

Variables Influencing Diamond Pricing

It might be tempting to assume that a 4-carat diamond would automatically carry a price tag twice that of a 2-carat diamond with identical quality. However, the reality is far more intricate, as numerous factors play a role in determining the overall cost of a 4-carat diamond.

Furthermore, it’s essential to recognize that not all 4-carat diamonds possess the same characteristics…

The evaluation of diamond quality follows a comprehensive framework known as the 4Cs. Devised by the esteemed Gemological Institute of America (GIA), this system was introduced shortly after the discovery of techniques to optimize the brilliance and radiance of round diamonds.

The 4Cs principle establishes that diamonds undergo evaluation based on four primary criteria. These criteria encompass the diamond’s Cut, Clarity, Color, and Carat weight. Each criterion further comprises its own distinct grading system.

When determining the price of a 4-carat diamond engagement ring, it primarily hinges upon the interplay of the 4Cs specific to that particular diamond, alongside a handful of additional characteristics.

The Cut Quality of the Diamond

The paramount significance of your diamond lies within its cut quality, which stands as the foremost grading criterion. This is due to the fact that the diamond’s cut directly influences its overall luminosity, sparkle, and even its resilience.

The term “diamond cut” can encompass both the diamond’s shape and the precise manner in which it is fashioned by a skilled diamond cutter. The quality of the cut is instrumental in determining whether your diamond will exude brilliance or appear lackluster.

Within the realm of cut grading, a spectrum of five distinct categories exists:

  • Ideal/Excellent
  • Very Good
  • Good
  • Fair
  • Poor

It is uncommon to encounter diamonds of Fair or Poor cut quality within the retail market. However, if one does come across such diamonds, they tend to exhibit a lackluster appearance, lacking the desired brilliance and radiance.

The GIA evaluates seven key aspects to ascertain the quality of a diamond’s cut: luminosity, radiance, shimmer, weight proportion, resilience, refinement, and balance.

While round diamonds are the sole shape considered genuinely flawless, James Allen offers princess cuts and cushion cuts in an “ideal” category. However, these shapes do not possess absolute flawlessness but instead fall within a spectrum of recommended dimensions.

These dimensions have been determined by professionals in the field of diamonds and gemology. Nevertheless, round diamonds stand alone in possessing impeccable symmetry and superior light performance as the quintessential ideal cut diamond.

Ideal cut diamonds and Excellent cut diamonds share the highest cut grade, although the GIA exclusively employs the term “Excellent cut.” Conversely, the American Gem Society designates it as ideal or AGS 0 Ideal.

In grading reports, it becomes apparent that fancy diamond shapes (non-round) lack an officially assigned cut grade. However, when perusing online diamond vendors, it is common to encounter Very Good or Good ratings for fancy shapes.

For those unfamiliar with diamond intricacies, discerning the disparities between an Excellent Cut, Very Good cut, and a Good cut diamond might appear inconsequential when considered individually. Nevertheless, I invite you to view the accompanying video, showcasing a side-by-side comparison, which could shed further light on the matter.

Can you perceive the disparity in the luminosity exhibited? The brilliance of the Good cut diamond paled significantly in comparison to the other two. Such diamonds of this kind may possess disproportions or deficiencies in symmetry.

Imbalances in symmetry result in the leakage of light passing through the diamond, rather than its reflection.

When it comes to a 4 carat diamond, economizing on the cut cost becomes considerably more challenging, leaving me devoid of any specific techniques. It is imperative not to compromise on the cut grade, particularly in the case of a round diamond. In the case of other shapes, one should prioritize achieving ideal proportions for the given shape instead of adhering to a specific cut category.

Diamond Clarity

The second significant factor to take into account when evaluating the price of a 4-carat diamond ring is the diamond’s clarity. Inclusions are inherent in all diamonds. In the case of lab-grown diamonds, these inclusions typically manifest as metallic imperfections caused by laboratory conditions. Compared to mined diamonds, lab-grown diamonds generally exhibit superior visual clarity.

Mined diamonds, on the other hand, can display a wide range of inclusions. These inclusions may occur naturally during the crystallization process or can be introduced through human intervention, often during the cutting phase.

Internal inclusions typically comprise fragments of trapped crystals within the diamond. As long as these inclusions are not located near the surface, they generally do not pose any significant harm to the diamond’s integrity.

In the event of a diamond being impacted in the vicinity of a larger crystal inclusion, there is an increased likelihood of it experiencing a chipping phenomenon at that precise location. However, it should be noted that the majority of internal inclusions primarily pose a concern in terms of visual aesthetics. Those inclusions which possess the potential to inflict harm upon the diamond upon impact are commonly referred to as blemishes.

The assigned clarity grade of your diamond serves as an indicator of the extent to which it is devoid of inclusions when observed under a magnification of 10 times. Within the diamond industry, the following clarity grades have been officially recognized:

Diamonds classified as “Very Slightly Included” (VS) represent the initial tier of clarity where they are deemed visually clean to the naked eye. When a diamond can be examined without aid and no inclusions are perceptible from a distance of 6 to 12 inches, it is characterized as being eye-clean.

It is not surprising that eye-clean diamonds command a higher price.

If you are realizing that exceptional quality comes with a significant price tag within the realm of diamonds, then you are beginning to grasp the concept.

Acquiring a 4 carat diamond of impeccable clarity demands a significant investment. The cost escalates considerably due to the intricacies involved in shaping a larger diamond with minimal imperfections compared to a smaller one.

Given the scarcity of 4 carat diamonds, their price range surges to extraordinary heights. Cutting larger diamond roughs poses challenges as inclusions become more conspicuous and evading them becomes arduous.

The process necessitates considering the rarity of unblemished diamond roughs and combines with a specific shape like round, which further eliminates excess material, thereby intensifying the price escalation.

Occasionally, one might come across a clarity classification known as SI3, although it predominantly represents diamonds categorized as I clarity. Diamonds in the I clarity range typically exhibit significant inclusions and are positioned at the lowest level of clarity. While certain vendors refrain from selling diamonds in this category, many retail chain stores readily offer them, often at twice the price compared to online retailers.

Diamond Color

During the subterranean process of diamond formation, various impurities infiltrate the crystals, resulting in their captivating hue. Distinctive types of diamonds, known as fancy color diamonds, emerge when specific elements permeate the crystalline structure. For instance, the inclusion of boron engenders the creation of exquisite blue diamonds, which are exceptionally rare.

The evaluation of diamond color by the Gemological Institute of America (GIA) centers around the detection of yellow tones, attributable to the presence of nitrogen within the diamond.

Unlike the aspects of cut and clarity, the color of a diamond does not exert any influence on its durability. Instead, color grades serve as a matter of aesthetic preference. Nevertheless, they significantly impact the overall cost and value of the diamond.

The Gemological Institute of America (GIA) has established a comprehensive color grade scale, comprising four distinct categories. These groups encompass Colorless (DEF), Near Colorless (GHIJ), Faint (KLM), Very Light Yellow (N-R), and Light Yellow (S-Z). As we delve into the Light Yellow range, we approach the realm of yellow fancy colored diamonds.

Undoubtedly, Colorless diamonds reign supreme in terms of both value and cost, representing the pinnacle of desirability. This elevated pricing can be attributed to the fact that diamonds, as they form within the Earth, are frequently exposed to additional elemental influences. Notably, the presence of nitrogen impurities causes the manifestation of yellow hues when light passes through the diamond.

Similar to the intricacies of diamond clarity, the process of cutting a colorless diamond weighing 1.5 carats demands greater skill and effort compared to the cutting of three diamonds, each weighing 0.5 carats.

It is crucial to bear in mind that as the carat weight of a diamond increases, the presence of a yellow hue becomes more perceptible. Due to this factor, I would suggest opting for a minimum clarity grade of H (near colorless). The ultimate decision, however, rests with you. Nonetheless, I have personally observed that the tint becomes notably noticeable in diamonds rated below the I color grade.

Nevertheless, there exist valid reasons why some individuals may prefer a warmer color grade, taking into consideration factors such as their skin tone.

In such cases, caution is advised when considering lower color grades for engagement rings that do not feature a solitary stone setting, such as a solitaire or bezel setting. The inclusion of smaller diamonds in the ring setting can offset the color grade of the central stone.

Renowned brands in the realm of designer rings, such as Neil Lane and Vera Wang, have garnered a reputation for encountering this particular challenge. A visit to a nearby Kay Jewelers and a glimpse at their halo Neil Lane settings will unveil the disparity in color perception when comparing the center diamond to the surrounding halo diamonds.

Due to their diminutive size, smaller melee diamonds tend to possess a relatively higher color grade. It is highly improbable for jewelers to incorporate small JKL melee gemstones into a ring, thereby resulting in their seemingly whiter appearance compared to the central stone.

Opting for a near colorless or faint color grade in a 4 carat diamond presents an opportunity to conserve a considerable sum of money, potentially amounting to a few hundred dollars. However, it is important to acknowledge that the visibility of color becomes more pronounced in a 4 carat diamond compared to a 1 carat diamond ring. The visual impact might not align with your preferences, prompting you to consider a pricier color grade instead.

Diamond Carat Weight

There exists a significant distinction between carat weight and carat size that merits attention. While diamonds are quantified in terms of carat weight, our perception primarily revolves around their physical size. This peculiarity likely arises due to the prevailing practice of presenting diamonds through a standardized weight chart, which offers a top-down view of the diamonds, as exemplified in the illustration below.

Presently, the average weight of center diamonds purchased tends to fall within the range of 1.08 to 1.2 carats. It is important to note that this observation specifically pertains to round cut diamonds. Comparatively, a 1 carat round diamond would exhibit a smaller visual appearance when contrasted with a 1 carat emerald cut diamond. This disparity arises from the inherent characteristics of emerald cut shapes, which possess a larger table size (top view) in relation to round diamonds of equal carat weight.

Essentially, the discrepancy can be attributed to the fact that rectangles tend to create a perception of greater size when compared to circles. In the context of diamonds, shapes such as rectangles, squares, and ovals manifest as shallower and wider, thus imparting a larger visual impression. In contrast, round diamonds are characterized by their depth and a relatively small face-up view.

Other Different Factors

The Shape of the Diamond

Although fancy-shaped loose diamonds may possess a larger surface area compared to round-cut diamonds with identical grades, they are more likely to be priced lower. The round brilliant diamond stands as the most coveted diamond shape and commands the highest price.

Detractors of diamonds may argue that their exorbitant cost stems from the high demand, but this assertion lacks complete accuracy. Undoubtedly, supply and demand play substantial roles in determining prices across various industries, yet round diamonds possess an inherent uniqueness that sets them apart from other diamond shapes.

Indeed, the round shape stands alone in its ability to deliver superior light performance, perfect symmetry, and ideal proportions. Moreover, the process of cutting a round diamond necessitates the discarding of a considerable amount of diamond rough material.

Each unique diamond shape requires a distinct cutting and polishing process tailored to its individual characteristics.

Various sections of the rough diamond lend themselves better to different shapes. When crafting a round diamond, approximately 60% of the diamond rough must be discarded. However, in the case of a princess cut diamond, only around 20% of the rough material is deemed unusable. This discrepancy arises from the round diamond’s demand for meticulous precision during the cutting process.

Due to their scarcity, finding ways to save on a 4-carat diamond can be quite challenging. Opting for a fancy diamond shape such as a pear diamond as opposed to a round shape can yield the greatest savings. Please note that the following collection of estimated prices for 4-carat diamonds based on their respective shapes is purely indicative and generalized in nature.

The style of cutting contributes significantly to the uniqueness of various diamond shapes. Among the top ten popular diamonds, they can be classified into two main types: brilliant-cut and step-cut. However, some shapes, such as the trapezoid shape, offer the flexibility of being cut in either manner.

In the case of a brilliant cut diamond, it undergoes a cutting process that involves numerous short and minuscule facets. When a brilliant cut shape possesses a high cut grade, it radiates a dazzling display of fire, emanating a mesmerizing sparkling or glittering effect.



Step cut diamonds exhibit elongated facets that resemble a series of steps, as the name suggests. When light interacts with these step cut facets, it produces captivating bursts of illumination akin to the dazzling flashes of paparazzi cameras on a glamorous red carpet. It is no wonder that step cut diamonds have gained popularity among celebrities, who are drawn to their captivating allure.


1.01 Carat asscher diamond
1.01 Carat asscher diamond


Asscher and emerald cuts are the primary representatives of step cut shapes. These captivating forms, reminiscent of steps, showcase the distinctive allure of step cuts. On the other hand, trapezoids and baguettes, also classified as step cut, are commonly employed as side stones rather than center stones, complementing the main focal point of the jewelry piece.

Grading Report

When considering the purchase of a 4-carat diamond, it is imperative that you prioritize the acquisition of a valid diamond certification. This certification serves as undeniable proof that you have invested in a diamond with precise and accurate grades. Without such certification, there is a risk of unknowingly purchasing a diamond with inferior grades than what you have paid for.

However, it is crucial to note that not all diamond grading laboratories are equal in their standards and practices. In fact, some labs employ more lenient guidelines compared to others. To ensure your peace of mind, I strongly advise selecting only 4-carat diamonds that have been certified by either the GIA (Gemological Institute of America) or AGS (American Gem Society). It is advisable to steer clear of 4-carat diamonds certified by in-house labs, GCAL, IGI, GSI, or EGL. In the case of lab-grown diamonds, I recommend prioritizing the IGI or

When considering the purchase of a 4-carat diamond, it is imperative that you prioritize the acquisition of a valid diamond certification. This certification serves as undeniable proof that you have invested in a diamond with precise and accurate grades. Without such certification, there is a risk of unknowingly purchasing a diamond with inferior grades than what you have paid for.

However, it is crucial to note that not all diamond grading laboratories are equal in their standards and practices. In fact, some labs employ more lenient guidelines compared to others. To ensure your peace of mind, I strongly advise selecting only 4-carat diamonds that have been certified by either the GIA (Gemological Institute of America) or AGS (American Gem Society). It is advisable to steer clear of 4-carat diamonds certified by in-house labs, GSI, GCAL, IGI, or EGL. In the case of lab-grown diamonds, I recommend prioritizing the GIA or IGI certifications for authenticity and reliability.

RECOMMENDED: Best Diamond Certification

The diamond grading reports provided by GIA (Gemological Institute of America) and AGS (American Gem Society) hold significant value due to their esteemed reputation and expertise within the gem industry. Their stringent guidelines for assessing diamond grades are considered the highest standard. It has been observed that diamonds certified by alternative laboratories often receive lower grades when re-evaluated by the GIA.

If you have invested a substantial amount of $80,000 in a 4-carat diamond boasting exceptional color and clarity, it is absolutely crucial to ensure that you have received the precise and superior quality diamond you paid for. In this regard, diamond grading reports play a vital role in safeguarding your interests. Moreover, it is worth noting that you can even opt to send an ungraded diamond to the GIA for certification, further ensuring the accuracy and legitimacy of your diamond’s quality.

Final Thoughts – How Much Does a 4 Carat Diamond Cost?

When seeking to acquire a 4-carat diamond, it is vital to prioritize obtaining a diamond with superior cutting quality. In the case of purchasing a round diamond, my suggestion is to consistently opt for an Excellent Cut diamond or an ideal cut diamond. While it is possible to acquire a super ideal cut diamond, it is not an obligatory requirement.

In terms of achieving optimal clarity, I would advise considering a clarity grade of VS (Very Slightly Included). You have the option to choose between the VS1 or VS2 grades based on your preferences. In the online shopping realm, it is possible to discover SI (Slightly Included) diamonds that are visually clean if you select a retailer that offers a vast inventory of 4-carat diamonds accompanied by 360˚ videos.

When it comes to the color aspect of a 4-carat diamond, I suggest focusing on a color grade of G. It is worth noting that larger diamonds have a tendency to exhibit more noticeable yellow hues. For diamond shapes with larger surface areas, you might even contemplate opting for a higher color grade. However, I would caution against selecting a color grade lower than H for a 4-carat diamond.

There are various strategies that can potentially help reduce the price of a diamond, such as considering the selected ring setting, the choice of metal, and utilizing a 360˚ viewer.

To guarantee that you are paying for the accurate diamond grades, it is advisable to exclusively purchase certified diamonds. For utmost precision and optimal resale value, diamonds certified by GIA (Gemological Institute of America) and AGS (American Gem Society) are highly recommended.

Typically, the price range for a superior 4-carat diamond with high quality falls between approximately $30,000 to well over $300,000.

By opting for a lab-created diamond, it is possible to achieve a significant reduction in cost, typically ranging from 20% to 40%. Although lab-created diamonds may not possess trade-in value, they offer an enticing advantage of acquiring a 4-carat diamond at merely one-third of the price compared to a mined diamond.

If you decide to explore lab-created diamonds, I suggest considering reputable sellers such as James Allen or Clean Origin for your purchase.

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