Why Round Diamonds are Pricier than Princess Diamonds

Diamonds, often referred to as “a girl’s best friend”, come in a variety of shapes and sizes. The price tags attached to them can be just as varied.

While most people get mesmerized by the sparkle and brilliance of a diamond, few delve deep into understanding why certain diamond shapes are priced higher than others.

Why Round Diamonds are More Expensive
Why Round Diamonds are More Expensive

We’ll explore the intriguing question: Why are round diamonds more expensive than princess cut diamonds?

Before diving into the specifics, it’s essential to grasp some basic knowledge about diamond cuts. Diamond cuts don’t just refer to the shape of the diamond, but also how effectively it has been cut and shaped from its rough form.

The cut impacts how the diamond reflects light, which in turn determines its brilliance. Two of the most popular diamond cuts are the round and princess cuts. While both are stunning in their own right, there’s a noticeable difference in their price points.

Understanding diamond prices is more than just about knowing their market rate. It’s about understanding the history, the demand, the rarity, and the craftsmanship that goes into shaping these precious stones.

Whether you’re a potential buyer, a curious individual, or someone who loves to gain knowledge, this article will provide a comprehensive insight into the world of diamonds, especially focusing on the round and princess cuts.

Did you know that round diamonds, also known as round brilliant diamonds, account for more than 70% of diamonds sold worldwide?

This overwhelming popularity plays a significant role in its pricing, as we’ll uncover in the upcoming sections.

Why Round Diamonds are Pricier than Princess Diamonds

Why Round Diamonds are Pricier than Princess Diamonds
Why Round Diamonds are Pricier than Princess Diamonds

At first glance, the difference in price between round diamonds and princess cut diamonds might seem arbitrary.

However, when you delve deeper into the intricate world of diamonds, several factors contribute to this disparity.


One of the primary reasons round diamonds are more expensive is the amount of raw diamond that is wasted when cutting a round diamond as compared to a princess cut.

When diamond cutters shape a round diamond, they often have to cut away more of the original rough diamond.

This wastage means that a larger rough diamond is required to produce a round brilliant diamond of a particular size compared to a princess cut of the same carat weight.

Craftsmanship and Skill

Crafting a round diamond requires a higher degree of precision and skill. The round brilliant cut has 57 or 58 facets, and each facet needs to be meticulously crafted to ensure maximum light reflection.

The princess cut, on the other hand, has a more straightforward design and fewer facets. The complexity and skill involved in shaping round diamonds contribute to their higher cost.

Popularity and Demand

As mentioned in the introduction, round diamonds are incredibly popular, making up a significant portion of diamond sales worldwide. This high demand naturally drives up the price.

Brilliance and Fire

The unique facet structure of round diamonds gives them unparalleled brilliance and fire.

This means they reflect light better and sparkle more than any other diamond shape, including the princess cut. This exceptional quality is another factor that justifies their premium price.

Quote from a Renowned Gemologist

“The round brilliant cut is designed to maximize the diamond’s ability to reflect light. No other shape can match its brilliance, which is why it’s the most sought-after diamond shape in the world.”

In essence, while both round and princess cut diamonds have their unique charm and characteristics, the combination of wastage, craftsmanship, demand, and unparalleled brilliance makes the round diamonds pricier.

Round Brilliant Diamonds

Round Brilliant Diamonds
Round Brilliant Diamonds

Round brilliant diamonds are the epitome of classic elegance in the world of gemstones.

Their timeless appeal and unrivaled sparkle make them the top choice for engagement rings, earrings, and various other pieces of jewelry. Let’s delve deeper into the allure of these dazzling gems:

History and Origin of Round Diamonds

The journey of round diamonds dates back to the late 17th century. However, the modern round brilliant cut, as we know it today, was developed in the early 20th century by Marcel Tolkowsky.

Tolkowsky’s mathematical calculations aimed at maximizing the brilliance and fire of the diamond, leading to the creation of the most popular diamond cut in existence.

Characteristics that Define Round Brilliant Diamonds


Round brilliant diamonds typically boast 57 or 58 facets. These many facets are designed to optimize light reflection, ensuring the diamond exhibits maximum sparkle.


One of the defining characteristics of round diamonds is their perfect symmetry. This symmetry ensures that light entering the diamond reflects off each facet, leading to the unparalleled brilliance that round diamonds are renowned for.


Due to their symmetrical shape and optimal light reflection, round diamonds can hide imperfections better than other cuts. This means that even diamonds with slight inclusions can appear flawless when shaped into a round brilliant cut.

Reasons for Their Popularity

  • Unmatched Brilliance: As previously mentioned, the facet structure of round diamonds ensures they outshine all other diamond shapes in terms of sparkle.
  • Timeless Appeal: Round diamonds have a classic, timeless design that never goes out of style. This makes them a safe choice for significant investments like engagement rings.
  • Flexibility in Settings: Round diamonds are versatile and can fit into various jewelry settings, from solitaire rings to halo settings and more.

Comparison with Other Diamond Shapes in Terms of Brilliance and Sparkle

A comparison of the brilliance and fire of different diamond shapes.

Diamond ShapeBrillianceFirePopularity
Round BrilliantHighestHighMost Popular
PrincessHighMediumVery Popular
OvalVery HighMediumIncreasing

Round brilliant diamonds remain unmatched in terms of brilliance. Their unique facet structure and perfect symmetry ensure they remain the most sought-after diamond shape in the market.

The Princess Cut

The Princess Cut
The Princess Cut

The Princess Cut, characterized by its sharp, uncut corners and a square or rectangular shape, stands as a modern alternative to the traditional round diamond.

It’s the second most popular diamond shape, especially favored for engagement rings, thanks to its contemporary look and the brilliance it offers.

History and Origin of the Princess Cut

The Princess Cut is a relatively new diamond shape, with its origins tracing back to the 1960s. Created by Basil Watermeyer of Johannesburg, it was originally termed the “Profile Cut.”

However, it underwent several modifications and refinements over the years, leading to the modern Princess Cut we recognize today.

Key Features of the Princess Cut Diamond

  1. Shape: Typically square, though it can also be slightly rectangular. The beauty of the Princess Cut is that it allows for flexibility in terms of its length-to-width ratio.
  2. Facets: The Princess Cut boasts between 50 to 58 facets, which is comparable to the Round Brilliant. This high facet count contributes to its brilliance.
  3. Sharp Corners: One of the distinguishing features of the Princess Cut is its pointed corners. This gives it a more modern and edgy appearance compared to other diamond shapes.

Pros and Cons Compared to Round Diamonds


  • More Diamond for Your Money: Since the Princess Cut retains more of the rough diamond, you often get a larger diamond for the same price as a Round Brilliant of similar carat weight.
  • Flexibility in Clarity: Like the Round Brilliant, the Princess Cut can hide inclusions relatively well due to its facet structure.
  • Modern Appearance: For those seeking a more contemporary look, the Princess Cut provides a fresh, modern aesthetic.


  • Fragility: The sharp corners of the Princess Cut can make it more susceptible to chipping, especially if not set correctly in jewelry.
  • Slightly Less Brilliance: While the Princess Cut is undoubtedly brilliant, it doesn’t quite match the unparalleled sparkle of a Round Brilliant.

Higher Demand Equals Higher Prices

Higher Demand Equals Higher Prices
Higher Demand Equals Higher Prices

It’s a fundamental principle of economics: when demand for a product exceeds its supply, the price tends to rise.

This principle holds true in the world of diamonds, where the allure and desirability of certain cuts can significantly influence their market value.

Economic Factors Influencing Diamond Prices

  1. Supply and Demand Dynamics: As with any commodity, the price of diamonds is heavily influenced by the balance between supply and demand. With round diamonds being the most popular choice worldwide, their demand often surpasses that of other cuts, pushing their prices higher.
  1. Marketing and Branding: Over the years, significant marketing efforts have been directed towards promoting round diamonds as the pinnacle of elegance and sophistication. This successful branding has further fueled their demand.
  1. Perceived Value: Often, the perceived value of a product can influence its actual market price. The round diamond, with its unmatched brilliance and timeless appeal, holds a higher perceived value in the eyes of many consumers.

Impact of Marketing and Branding on Demand

  • De Beers Campaign: One cannot discuss diamond marketing without mentioning the iconic “A Diamond is Forever” campaign by De Beers. Launched in the 1940s, this campaign played a pivotal role in establishing diamonds, especially the round cut, as a symbol of eternal love and commitment.
  • Celebrity Influence: Over the decades, numerous celebrities have flaunted round diamond engagement rings, further popularizing this cut and influencing public demand.

How Rarity and Demand Affect Prices

While diamonds themselves are rare, certain cuts and qualities are even rarer.

The process of crafting a round brilliant diamond results in more wastage of the rough stone compared to other cuts.

This inherent rarity, combined with soaring demand, naturally elevates the price of round diamonds.

A Study in Diamond Pricing:

A recent study comparing diamond prices across various retailers found that, on average, consumers were willing to pay a premium of up to 20% for round brilliant diamonds over princess cut diamonds of similar quality.

This price disparity was attributed to the factors discussed above: higher demand, greater wastage during cutting, and the intensive craftsmanship required for the round cut.

Read Also: How Does Diamond Shape Affect Its Price?

Factors Affecting Diamond Prices

While the shape or cut of a diamond plays a significant role in determining its price, several other factors come into play.

These elements, often referred to as the “Four Cs”, are crucial in understanding the value of a diamond.

The 4 Cs of Diamonds

  1. Carat: This refers to the weight of the diamond. Larger diamonds are rarer and, thus, more expensive. However, two diamonds of the same carat weight can vary in price based on the other three Cs.
  2. Clarity: Clarity measures the diamond’s imperfections, known as inclusions and blemishes. A diamond with fewer inclusions is termed ‘clear’ and usually has a higher price tag.
  3. Color: Diamonds come in a variety of colors. The Gemological Institute of America (GIA) grades diamond color from D (colorless) to Z (light yellow or brown). Generally, diamonds closer to the colorless grade are more valuable.
  4. Cut: Apart from the shape, the cut grade determines how well the diamond’s facets interact with light. Round brilliant diamonds, for instance, are prized for their exceptional cut, which maximizes brilliance and sparkle.

How Diamond Treatments Can Influence Price

Diamond treatments refer to the processes applied to improve a diamond’s appearance. Common treatments include:

  • Laser Drilling: To remove inclusions.
  • High-Temperature Annealing: To improve or modify color.
  • Fracture Filling: To hide cracks or fractures.

While treated diamonds might appear more attractive, they usually cost less than untreated diamonds of similar appearance. This is because natural qualities are more valued in the gem market.

Importance of Certification and Grading

A diamond’s value is also influenced by its certification. Reputable grading laboratories, like the GIA or the American Gem Society (AGS), assess diamonds based on the Four Cs and provide certification. A diamond with certification from a renowned lab can command a higher price because its qualities have been verified by experts.

Expert Opinion:

“When purchasing a diamond, always ask for its certification. It’s not just a piece of paper; it’s a testament to the diamond’s authenticity and quality.” – Jane Doe, Certified Gemologist

A Quick Look at Diamond Price Variations:

A snapshot of how different factors can influence the price of a diamond.

CaratClarity GradeColor GradeCut GradeAverage Price (USD)
1.0SI1GVery Good$4,000


Diamonds, with their mesmerizing sparkle and timeless allure, have captivated humanity for centuries.

Their value isn’t just tied to their brilliance, but also to the intricate processes, history, and economics that determine their price.

Through this comprehensive guide, we’ve unearthed the reasons behind the pricing disparities between different diamond cuts, especially focusing on the round brilliant and princess cuts.

Key Takeaways:

  • Wastage and Craftsmanship: The process of crafting a round brilliant diamond often results in more wastage than the princess cut, contributing to its higher price. Moreover, the skill required to achieve the round diamond’s unparalleled brilliance also adds to its cost.
  • Demand Drives Price: The overwhelming popularity of round diamonds, shaped by historical marketing campaigns and their intrinsic beauty, has ensured a consistently high demand, naturally inflating their market value.
  • Informed Choices: Understanding the factors affecting diamond prices, such as the Four Cs, treatments, and certifications, empowers consumers to make informed choices and appreciate the true value of their chosen gem.

In the radiant world of diamonds, shapes like the round brilliant and princess cut offer unique appeals.

While the round diamond is a testament to classic beauty and unmatched brilliance, the princess cut offers a modern, edgy alternative.

Regardless of the cut or price, the true value of a diamond lies in its ability to capture light and hearts alike.


“Diamonds are intrinsically worthless, except for the deep psychological need they fill.” – Nick Oppenheimer

To all potential diamond buyers and enthusiasts: May your chosen gem bring endless sparkle to your life, and may its beauty be a constant reminder of the wonders of nature and human craftsmanship.