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4-Carat Princess Cut Diamonds Price Expert’s Buying Guide

Updated on July 7, 2024

With over 40 years of expertise, Diamond Registry’s CEO and owner, Nissan Perla, is your trusted guide in the diamond-buying world. Recognized by prestigious publications like The Washington Post and Chicago Tribune, Nissan’s extensive knowledge and experience in evaluating, buying, and selling diamonds are unparalleled. Our commitment to integrity, transparency, and delivering exceptional value ensures that you make an informed decision when acquiring your timeless treasure. Choose Diamond Registry for personalized guidance, education, and a curated selection of the finest quality diamonds, backed by decades of industry expertise and dedication to your satisfaction.

Table of Contents

Published on July 7, 2024
Updated on July 7, 2024

4-carat princess cut diamonds offer impressive size and modern appeal, but their prices can fluctuate significantly, as well as diamonds’ value.

This guide shows the key factors influencing the cost of these square-shaped gems, helping you make a smart purchase decision. 

We’ll cover essential considerations to ensure you get the best value when investing in a 4-carat princess cut diamond.

Price Range for 4 Princess Cut Diamonds

The price of 4-carat princess cut diamonds can vary significantly based on several factors, primarily the 4Cs: cut, color, clarity, and carat weight. On average, prices for these diamonds typically range from $20,000 to $150,000 or more.

At the lower end of the spectrum, you might find 4-carat princess cut diamonds with lower color grades (K-M) and clarity grades (SI1-I1) priced around $20,000 to $40,000.

Mid-range options with better color (G-J) and clarity (VS1-SI2) can cost between $40,000 and $80,000. 

Premium 4-carat princess cut diamonds with excellent cut, high color grades (D-F), and top clarity ratings (IF-VVS2) can command prices from $80,000 to $150,000 or more.

Here’s a table illustrating approximate price ranges based on color and clarity for 4-carat princess cut diamonds:

ColorClarityPrice Range
D-FIF-VVS2$110,000 – $150,000+
G-HVS1-VS2$80,000 – $110,000
I-JSI1-SI2$50,000 – $80,000
K-MSI2-I1$20,000 – $50,000

Note that these are general ranges, and actual prices can vary based on the specific characteristics of each diamond and market conditions.

4-Carat Princess Cut Diamonds

Cut Quality

Cut quality is crucial when evaluating a 4-carat princess cut diamond, significantly impacting both its beauty and price. 

While princess-cut diamonds don’t receive official cut grades like round brilliants, their cut quality greatly affects their appearance and value.

For 4-carat princess cut diamonds, even small variations in cut quality can lead to substantial price differences. Well-cut princess diamonds command premium prices, often 15-25% higher than those with less ideal proportions.

When assessing cut quality in princess cut diamonds, consider these factors:

  1. Table percentage: Typically 58-70% is considered ideal for optimal light performance.
  2. Depth percentage: Ideally between 68-75% for balanced proportions.
  3. Symmetry: Ensures the diamond’s facets and overall shape are balanced.
  4. Polish: A smooth surface allows better light entry and reflection.
  5. Length-to-width ratio: For a square princess cut, aim for 1.00-1.05.

Investing in a high-quality cut can significantly enhance the diamond’s appearance, making it appear larger and more brilliant than lower-quality cuts of the same carat weight.


Color grading plays a crucial role in determining the price of 4-carat princess cut diamonds. The color scale for white diamonds ranges from D-Z.

In 4-carat diamonds, color differences become more noticeable due to the larger size, making higher color grades particularly desirable. This visibility factor often leads to steeper price increases between color grades compared to smaller diamonds.

Price implications of color grades for 4-carat princess cut diamonds:

  • D-F (Colorless): Command the highest prices, often 20-35% more than G-H diamonds.
  • G-H (Near Colorless): Offer a balance of quality and value, popular for larger diamonds.
  • I-J: Present noticeable warmth, with prices 15-25% lower than G-H.
  • K-M: Show visible yellow tints, priced significantly lower, often 30-40% less than G-H.

When selecting a color grade, consider that princess cut diamonds tend to retain color more than round brilliants. This characteristic may make it worthwhile to invest in a higher color grade for a 4-carat princess-cut diamond.


Clarity refers to the presence of internal (inclusions) or external (blemishes) imperfections in a diamond. The clarity scale ranges from Flawless (FL) to Included (I3), with higher grades commanding higher prices.

For 4-carat princess cut diamonds, clarity becomes increasingly important due to the larger size, which can make inclusions more visible. This visibility factor often results in more pronounced price differences between clarity grades compared to smaller diamonds.

Clarity grade impact on 4-carat princess cut diamond prices:

  • FL-VVS2: Premium prices, often 15-25% higher than VS1-VS2 grades.
  • VS1-VS2: Popular choices, balancing clarity and value.
  • SI1-SI2: Can offer significant savings (15-30% less than VS grades) if inclusions are not eye-visible.
  • I1-I3: Substantially lower prices, but inclusions may affect brilliance and durability.

When evaluating clarity in princess cut diamonds, consider that their facet pattern can sometimes help mask inclusions. However, due to the step-cut corners, some inclusions may be more visible than in other cuts. Careful selection can allow for some flexibility in choosing clarity grades without compromising visual appeal.

Carat weight

At 4 carats, princess cut diamonds are significantly larger than average and command premium prices. The price per carat increases exponentially with size, making 4-carat diamonds disproportionately more expensive than smaller stones of similar quality.

Key points about 4-carat princess cut diamond pricing:

  1. Price jump: Expect a substantial price increase from 3 to 4 carats, often 25-40% or more.
  2. Rarity factor: 4-carat princess cut diamonds are less common, contributing to higher prices.
  3. Quality premium: Higher quality (cut, color, clarity) becomes more critical and expensive at this size.

Price comparison:

  • 1-carat princess cut diamond: $3,500 – $12,000
  • 2-carat princess cut diamond: $10,000 – $50,000
  • 3-carat princess cut diamond: $18,000 – $100,000
  • 4-carat princess cut diamond: $20,000 – $150,000+

This exponential price increase reflects the rarity and desirability of larger diamonds. When budgeting for a 4-carat princess-cut diamond, consider that small compromises in color or clarity can lead to significant savings without necessarily impacting visual appeal.

Why Should You Buy a 4-Carat Princess Cut Diamond?

Investing in a 4-carat princess-cut diamond offers several compelling advantages:

  1. Impressive size: A 4-carat diamond makes a bold statement, standing out in any setting.
  2. Modern aesthetic: The square shape offers a contemporary look compared to traditional round brilliants.
  3. Efficient use of rough diamond: Princess cuts typically retain more of the original rough, potentially offering better value.
  4. Versatility: Suits various settings and styles, from classic to modern designs.
  5. Investment potential: Larger, high-quality diamonds often appreciate in value over time.
  6. Rarity: 4-carat princess cut diamonds are less common, adding to their uniqueness and value.
  7. Brilliance: Princess cuts offer excellent light performance, second only to round brilliants.
  8. Finger coverage: The square shape provides substantial finger coverage, creating a dramatic look.

However, consider the higher cost and potential for visible inclusions in the corners before making this substantial purchase.

What 4-Carat Princess Cut Diamond is Best For

4-carat princess cut diamonds are versatile and suitable for various applications:

  1. Engagement rings: Create a stunning, modern centerpiece.
  2. Statement jewelry: Ideal for pendant necklaces or dramatic earrings.
  3. Investment pieces: High-value diamonds for collectors or as financial assets.
  4. Heirloom creation: Substantial diamonds to pass down through generations.
  5. Luxury gifts: For significant milestones or celebrations.
  6. Cocktail rings: Design bold, eye-catching pieces.
  7. Custom Jewelry: Allows for unique, personalized creations.

When choosing the best use for a 4-carat princess cut diamond, consider:

  • Personal style and preferences
  • Lifestyle and practicality of wear
  • Budget constraints
  • Long-term value and potential for appreciation

The modern shape of princess cut diamonds ensures that a 4-carat stone can be adapted to suit various tastes and purposes, making it a valuable and flexible investment.

Buying Tips for 4-Carat Princess Cut Diamonds

  1. Prioritize cut quality: Look for well-proportioned princess cuts with excellent symmetry and polish.
  2. Evaluate the corners: Ensure they’re sharp and well-protected in the setting to prevent chipping.
  3. Consider length-to-width ratio: For a square appearance, aim for 1.00-1.05.
  4. Balance the 4Cs: Consider slight compromises in color or clarity to stay within budget without sacrificing overall beauty.
  5. Verify certification: Insist on reputable grading reports (GIA or AGS) to ensure the accuracy of quality claims.
  6. Examine for fluorescence: Strong fluorescence can affect price and appearance; consider its impact carefully.
  7. Compare prices: Shop from multiple reputable dealers to ensure competitive pricing.
  8. Consider clarity carefully: VS2-SI1 clarity grades often offer the best value, appearing clean to the naked eye.
  9. Assess color in person: Color differences can be subtle; view diamonds in various lighting conditions if possible.
  10. Check for inclusions: Request detailed plots or images to understand the nature and location of any inclusions.
  11. Consider the setting: Choose a setting that complements and secures the large stone effectively, protecting the corners.
  12. Negotiate: Given the high value, there may be room for price negotiation, especially with independent jewelers.
  13. Understand return policies: Ensure the seller offers a reasonable return period for such a significant purchase.
  14. Insurance: Factor in the cost of insuring such a valuable item.
  15. Think long-term: Consider how the diamond will fit your lifestyle and if it’s a piece you’ll cherish for years to come.

4-Carat Princess Cut Diamonds Engagement Ring

4-carat princess cut diamonds make stunning centerpieces for engagement rings, offering both visual impact and a modern aesthetic. However, their size and value come with unique considerations for daily wear.


  1. Dramatic visual impact
  2. Modern, square shape
  3. Excellent light performance and sparkle
  4. Substantial finger coverage
  5. Potential for appreciation in value


  1. High costs may limit other aspects of wedding planning
  2. Can be impractical for certain lifestyles or professions
  3. May snag on clothing or objects due to its size and sharp corners
  4. Requires extra care and attention to avoid damage or loss
  5. Can overwhelm smaller hands or appear ostentatious in some settings

For daily wear, consider:

  • Secure settings: V-prong or bezel settings offer extra protection, especially for corners.
  • Ring height: A lower profile setting may be more practical for daily activities.
  • Metal choice: Platinum or 14k gold provide durability for everyday use.
  • Insurance: Essential for such a valuable piece.
  • Regular maintenance: Professional cleaning and prong checks are crucial.

While a 4-carat princess cut diamond engagement ring is undoubtedly impressive, it’s essential to balance the desire for a show-stopping ring with practical considerations for long-term wear and enjoyment.

4-Carat Princess Cut Diamonds Engagement Rings

Where to Buy 4-Carat Princess Cut Diamonds

When purchasing a 4-carat princess cut diamond, choosing the right retailer is crucial. 

When purchasing a 4-carat Princess diamond, choosing the right retailer is crucial. Contact us to consult with our experts. Check what our clients say about us.

Also consider these options:

  1. Online diamond retailers:
    • Advantages: Competitive pricing, extensive inventory, detailed information
    • Examples: Blue Nile, James Allen, Brilliant Earth
    • Prices: Often 15-35% lower than traditional jewelers
  2. Traditional brick-and-mortar jewelers:
    • Advantages: In-person viewing, personalized service, immediate gratification
    • Considerations: Higher overhead often results in higher prices
    • Prices: Can be 15-40% higher than online retailers
  3. Luxury brand jewelers:
    • Advantages: Prestige, unique designs, high-quality craftsmanship
    • Considerations: Significant premium for brand name
    • Prices: Often 40-80% higher than non-branded options
  4. Diamond wholesalers:
    • Advantages: Potential for better pricing, access to a wide selection
    • Considerations: May require industry connections, less customer-oriented service
    • Prices: Can offer savings of 10-25% compared to retail
  5. Auction houses:
    • Advantages: Access to rare or unique pieces, potential for good deals
    • Considerations: Requires expertise, may involve additional fees
    • Prices: Highly variable, potential for both bargains and premium prices
  6. Lab-grown diamond retailers:
    • Advantages: Significantly lower prices, ethical considerations
    • Considerations: Different long-term value proposition than natural diamonds
    • Prices: Often 40-60% less than comparable natural diamonds

When choosing a retailer, consider:

  • Reputation and reviews
  • Certification and grading standards
  • Return and warranty policies
  • Customer service quality
  • Price transparency
  • Ability to view the diamond (in person or through high-quality imaging)

For a purchase of this magnitude, it’s advisable to research thoroughly, compare options from multiple retailers, and possibly consult with a trusted gemologist before making a final decision.

How Big Is a 4-carat diamond Princess Cut?

A 4-carat princess cut diamond is a substantial gem that makes a significant visual impact. To understand its size:

Approximate dimensions:

  • Length: 8.5-9.0 mm
  • Width: 8.5-9.0 mm
  • Depth: 6.0-6.5 mm

For context:

  • A US quarter is 24.26 mm in diameter
  • A 4-carat princess cut diamond is about 35-37% the diameter of a quarter

Compared to other common carat weights:

Carat WeightApproximate Side Length
1 carat5.5 mm
2 carat6.9 mm
3 carat7.9 mm
4 carat8.5-9.0 mm

Visual size factors:

  1. Length-to-width ratio: Can affect the perceived shape of the princess cut.
  2. Setting style: Certain settings (e.g., halo) can enhance the perceived size.
  3. Finger size: The same diamond may appear larger on a smaller finger.
  4. Surrounding stones: Smaller side stones can make the center diamond look larger.

While a 4-carat princess-cut diamond is noticeably large, its actual appearance can vary based on these factors. When considering a 4-carat princess cut, it’s helpful to view it in person or use size comparison tools to gauge its true visual impact.

Diamond Registry’s Expert Opinion

As diamond experts, we at Diamond Registry have extensive experience with 4-carat princess-cut diamonds. Here’s our professional perspective:

Our expert opinion is that a 4-carat princess cut diamond can be an excellent choice for those seeking a significant and valuable gem with a modern, square shape. However, careful consideration should be given to cut quality and overall proportions to ensure the best possible appearance and value.

Final Thoughts

Investing in a 4-carat princess-cut diamond is a significant decision that requires careful consideration of various factors. 

A 4-carat princess cut diamond can be a stunning and valuable acquisition, offering a unique combination of size, brilliance, and modern aesthetics. By approaching the purchase with knowledge, careful consideration, and a clear understanding of your priorities, you can find a diamond that not only meets your aesthetic desires but also represents a sound investment. 

Remember, the perfect diamond brings you joy and aligns with your personal values and financial considerations.

Have any questions? Contact us!

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Client Reviews

Rebecca Schott
Rebecca Schott
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Nissan, David and his team were extremely accommodating, understanding and patient with our purchase. They took the upmost care to find the best solution for our needs and went above and beyond normal ‘customer service’ standards. I have absolutely no qualms recommending their products and services. Both were absolutely flawless. I will continue to sing them praises and will most definitely purchase from them again in the future. Thank you again!
Gershom Menachem
Gershom Menachem
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Great team of diamond experts who show personal care for the client’s needs and aftersales service. They really go the extra mile to make it happen no matter the challenges ahead. Rush orders, international shipping, upgrade service, jewelry repair, large diamonds, small items, precious stones. Very honest and open information to the clients. You will feel like talking to a friend.
Thom P.
Thom P.
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Bought a beautiful stone here for an engagement ring. I was a little apprehensive since you’re buying something unseen. But Cid made it easy. In fact, Nissan, the owner also gave a call to make me more comfortable. They sent me the stone to take to a local jeweler with only my Amex in case I bailed on them.

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