The Complete Guide to Diamond Shapes: Choosing Your Perfect Cut

Table of Contents

• Round Brilliant Diamond
  
• Oval Diamond
  
• Emerald Cut Diamond
  
• Radiant Cut Diamond
  
• Pear Shaped Diamond
  
• Cushion Cut Diamond
  
• Marquise Diamond
  
• Princess Cut Diamond
  
• Asscher Cut Diamond
• Heart Shaped Diamond
• Trillion/Trilliant Cut Diamond
• Baguette Cut Diamond
• Rose Cut Diamond
• Summary
• Frequently Asked Questions
• References

Round Brilliant Diamond

The round brilliant diamond reigns as the most popular diamond shape, representing approximately 60% of all diamonds sold worldwide. This enduring popularity stems from its unmatched ability to maximize light return and sparkle.

Key Characteristics:

• Features 58 precisely cut facets designed to optimize brilliance
  
• Delivers maximum fire, brilliance, and scintillation
  
• Versatile shape that complements all setting styles
  
• Typically commands premium pricing due to higher rough diamond waste during cutting

Best For: Those seeking timeless elegance, maximum sparkle, and a classic look that never goes out of style. The round brilliant is ideal for traditionalists and anyone prioritizing brilliance above all else.

Style Considerations: Round diamonds work beautifully in solitaire settings, halos, three-stone designs, and vintage-inspired settings. Their symmetry makes them incredibly versatile for any jewelry style.

Oval Diamond

The oval diamond has surged in popularity in recent years, offering a sophisticated alternative to the round brilliant while maintaining exceptional sparkle. This elongated shape provides a unique combination of brilliance and modern elegance allowing you to pick what rations fit your hand more. If you want something a little bit more elongated, or if you want something a little bit more plump, the oval diamond is a great option.

Key Characteristics of the Oval Diamond:

• Modified brilliant cut with similar faceting to round diamonds
• Creates a slimming, finger-lengthening effect when worn as a ring
• Appears larger than round diamonds of the same carat weight
• May exhibit a "bow-tie" effect in the center (varies by cut quality) which is “not a bad thing”. 
• Best For: Those who love the sparkle of round diamonds but want something more distinctive and modern. 
• Oval diamonds appeal to people seeking a balance between classic brilliance and contemporary style.

Style Considerations: Oval diamonds shine in east-west settings, solitaires, and halo designs. They're particularly flattering on shorter fingers due to their elongating effect.

Emerald Cut Diamond

The emerald cut diamond epitomizes Art Deco elegance with its sophisticated step-cut facets and rectangular shape. Unlike brilliant cuts, emerald cuts emphasize clarity and luster over sparkle, creating a distinctive "hall of mirrors" effect.

Key Characteristics of the Emerald Cut Diamond:

• Features long, linear facets arranged in parallel rows. However, ratio plays a role for each individual hand.
  
• Showcases clarity and color more than other shapes
  
• Offers understated elegance with subtle flashes of light
  
• Trimmed corners provide durability and vintage appeal
  

Best For: Those who appreciate understated sophistication and vintage glamour. Emerald cuts appeal to individuals who value clarity, geometric precision, and a less flashy aesthetic.

Style Considerations: Emerald cuts look stunning in three-stone settings, solitaires with simple bands, and Art Deco-inspired designs. They require higher clarity grades (VS2 or better) as inclusions are more visible.

Radiant Cut Diamond

The radiant cut diamond combines the best of both worlds: the elegant rectangular outline of an emerald cut with the brilliant sparkle of a round diamond. This versatile shape offers maximum fire within a contemporary geometric silhouette.

Key Characteristics of the Radiant Cut Diamond:

• Features 70 facets that create exceptional brilliance and fire
  
• Trimmed corners add durability and visual interest
  
• Available in square or rectangular proportions
  
• Hides inclusions better than step-cut diamonds

Best For: Those who want a geometric shape with maximum sparkle. Radiant cuts appeal to people seeking a modern, eye-catching diamond that stands out from traditional choices.

Style Considerations: Radiant diamonds work beautifully in modern settings, three-stone designs with tapered baguettes, and mixed-metal designs that highlight their contemporary appeal.

Pear Shaped Diamond

The pear shaped diamond, also known as a teardrop diamond, combines the brilliance of a round cut with the uniqueness of a marquise. This romantic shape offers distinctive elegance and versatility in how it can be worn.

Key Characteristics of Pear Shaped Diamonds:

• Hybrid design with one rounded end and one pointed end
• Modified brilliant cut with excellent sparkle
  
• Creates a slimming, elongating effect on the finger
  
• Can be worn with the point facing up or down

Best For: Those seeking a romantic, unique shape with excellent brilliance. Pear shapes appeal to individuals who want something distinctive yet elegant, perfect for making a personal statement.

Style Considerations: Pear diamonds require a protective prong at the point and work beautifully in solitaires, halos, and vintage settings. They're particularly popular for pendants and earrings as well.

Cushion Cut Diamond

The cushion cut diamond features a square or rectangular shape with rounded corners, resembling a plush pillow. This vintage-inspired cut offers a romantic, softer alternative to more angular shapes while maintaining excellent brilliance. This shape has become more popular these days. A real specialist is needed to create just the right cushion cut from elongated to square cut corners. This is a very interesting and beautiful cut when done by an expert.

Key Characteristics of the Cushion Cut Diamond:

• Larger facets create a distinctive pattern of light and dark areas
• Rounded corners provide a softer, more romantic appearance
  
• Available in square or elongated rectangular proportions
  
• Comes in various facet patterns (standard, modified, crushed ice)
  

Best For: Those who love vintage aesthetics and romantic details. Cushion cuts appeal to individuals seeking old-world charm combined with modern brilliance and a softer, less geometric look.

Style Considerations: Cushion cuts excel in halo settings, vintage-inspired designs, and romantic styles. The elongated cushion variation offers a more contemporary take while maintaining the shape's characteristic charm.

Marquise Diamond

The marquise diamond features an elongated shape with two pointed ends, resembling a football or boat. This dramatic cut maximizes the appearance of carat weight, making it one of the most size-efficient diamond shapes available.

Key Characteristics of the Marquise Diamond:

• Creates maximum surface area for its carat weight
  
• Produces a striking, finger-lengthening effect
  
• Modified brilliant cut with excellent sparkle
  
• Pointed ends require protective prongs to prevent chipping
  

Best For: Those seeking maximum visual impact and a bold, distinctive look. Marquise diamonds appeal to individuals who want their diamond to appear as large as possible and aren't afraid of a dramatic statement.

Style Considerations: Marquise diamonds work beautifully in vintage settings, three-stone designs with complementary side stones, and nature-inspired settings. Proper prong placement at the points is essential for protection.

Princess Cut Diamond

The princess cut diamond is a square or rectangular brilliant-cut shape with sharp, geometric corners. As the second most popular diamond shape, it offers a contemporary alternative to round brilliants and face up the largest.

Key Characteristics of the Princess Cut Diamond:

• Features brilliant-style faceting for maximum light return
• Sharp, pointed corners create a modern, geometric look
  
• Requires protective prongs at all four corners
  

Best For: Those who love brilliant sparkle but prefer clean, geometric lines. Princess cuts appeal to modern, contemporary individuals seeking a shape that feels current and architectural.

Style Considerations: Princess diamonds shine in modern solitaires, channel-set bands, and contemporary designs. Four-prong or bezel settings best protect the vulnerable corners.

Asscher Cut Diamond

The Asscher cut diamond is a square step-cut with deeply trimmed corners, creating an octagonal appearance. This vintage Art Deco shape is known for its mesmerizing X-pattern visible through the table and its exceptional optical symmetry.

Key Characteristics Asscher Cut Diamond:

• Features large, rectangular facets arranged in concentric squares
• Creates a distinctive windmill or X-pattern effect
  
• Emphasizes clarity and creates a "hall of mirrors" appearance
  
• Originated in 1902 by the Asscher Brothers of Holland
  

Best For: Those who appreciate vintage glamour, Art Deco design, and geometric precision. Asscher cuts appeal to individuals seeking a sophisticated, less common shape with historical significance.

Style Considerations: Asscher diamonds excel in Art Deco settings, simple solitaires that showcase their symmetry, and vintage-inspired designs. Like emerald cuts, they require high clarity grades (VS2 or better).

Heart Shaped Diamond

The heart shaped diamond is the ultimate symbol of romance and love. This distinctive shape features a cleft at the top and a point at the bottom, creating an unmistakable romantic silhouette that makes a bold, sentimental statement.

Key Characteristics of Heart Shaped Diamonds:

• Modified brilliant cut with excellent sparkle
• Requires expert cutting to achieve perfect symmetry
  
• Best displayed in sizes above 0.50 carats for clear shape definition
  
• The cleft and lobes must be well-defined and symmetrical
  

Best For: Those seeking the ultimate romantic gesture or celebrating a meaningful relationship milestone. Heart shapes appeal to individuals who want their diamond to carry explicit symbolic meaning.

Style Considerations: Heart diamonds work beautifully in solitaire settings, three-prong or bezel settings that protect the point, and are particularly popular for pendants and promise rings.

Trillion / Trilliant Cut Diamond

The trillion (or trilliant) cut diamond is a distinctive triangular-shaped diamond featuring three equal or nearly equal sides and pointed corners. This bold, geometric shape offers a modern, artistic aesthetic that stands out from traditional diamond cuts.

Key Characteristics of Trillion or Trilliant Cut Diamonds:

• Triangular shape with either pointed or slightly rounded corners
• Modified brilliant-cut faceting for excellent sparkle and fire
  
• Typically features 50 facets for optimal light performance
  
• Can vary from equilateral to more elongated triangular proportions

Best For: Those seeking a bold, unconventional look with contemporary appeal. Trillion cuts appeal to artistic individuals who want a truly unique diamond shape that makes a strong design statement and showcases modern sophistication.

Style Considerations: While trillion diamonds can be used as center stones in avant-garde designs, they're most commonly featured as side stones flanking larger center diamonds in three-stone settings. The pointed corners require protective prongs or bezel settings to prevent chipping. Trillion cuts are particularly stunning when paired with round, oval, or emerald-cut center stones.

Baguette Cut Diamond

The baguette cut diamond is a small, rectangular or tapered step-cut diamond characterized by its long, clean lines and simple facet arrangement. Named after the French word for "rod" or "stick," baguettes are primarily used as accent stones rather than center stones.

Key Characteristics of Baguette Cut Diamonds:

• Rectangular shape with straight or tapered edges
• Features 14 facets (fewer than most diamond cuts)
• Step-cut faceting emphasizes clarity over brilliance
• Available in straight or tapered variations

Best For: Those creating sophisticated, geometric designs or seeking to complement a center stone without competing for attention. Baguettes appeal to minimalists who appreciate clean lines, Art Deco aesthetics, and understated elegance in their jewelry design.

Style Considerations: Baguette diamonds excel as side stones in three-stone settings, channel-set bands, and vintage-inspired designs. They're essential for creating authentic Art Deco looks and work beautifully flanking emerald, Asscher, or radiant-cut center stones. Due to their step-cut nature and prominent table, baguettes require high clarity grades (VS1 or better) as inclusions are easily visible.

Rose Cut Diamond

The rose cut diamond is a vintage cutting style dating back to the 1500s, featuring a flat bottom and a domed top covered in triangular facets that resemble a rosebud. This antique cut predates modern brilliant cuts and offers a distinctive, romantic aesthetic with subtle, candlelit sparkle. With the rise of lab-grown diamonds this cut has been gaining popularity, bringing back that vintage look.

Key Characteristics of Rose Cut Diamonds:

• Flat base with no pavilion (bottom facets)
• Domed top with 3 to 24 triangular facets arranged in a rose petal pattern
• Low profile sits close to the skin when set
• Produces soft, subtle light reflection rather than intense brilliance

Best For: Those who love antique jewelry, vintage aesthetics, and historical romance. Rose cuts appeal to individuals seeking authentic period pieces, bohemian styles, or jewelry with a softer, more organic sparkle that differs dramatically from modern brilliant cuts.

Style Considerations: Rose cut diamonds are perfect for vintage-inspired rings, bohemian designs, and those seeking a low-profile stone. They're particularly popular in rose gold or yellow gold settings that enhance their antique character. Because rose cuts lack the depth and faceting of modern cuts, they emphasize the diamond's natural color and clarity. They're ideal for those who prefer understated elegance and candlelit glow over bright, fiery sparkle.

Summary

Choosing the right diamond shape is a deeply personal decision that impacts the overall appearance, style, and personality of your jewelry. Each of the 10 diamond shapes explored in this guide offers unique advantages:

• Round brilliant diamonds provide unmatched sparkle and timeless appeal
• Oval and pear shapes offer modern elegance with elongating effects
• Emerald and Asscher cuts deliver sophisticated, vintage-inspired clarity
• Princess and radiant cuts combine geometric lines with brilliant sparkle
• Cushion and heart shapes provide romantic, distinctive alternatives
• Marquise diamonds maximize size appearance with dramatic flair

When selecting your diamond shape, consider factors beyond aesthetics, including how the shape complements your hand, your personal style preferences, your budget, and the setting style you envision. Remember that certain shapes like emerald and Asscher cuts require higher clarity grades, while others like radiant and cushion cuts are more forgiving of inclusions.

Ultimately, the best diamond shape is the one that resonates with you personally and brings you joy every time you look at it. With the rise of lab-grown diamonds and cutters becoming more flexible with materials, sky’s the limit with what cut and shape you want. Whether you choose a classic round brilliant or a unique heart shape, your diamond should reflect your individual style and the story you want to tell.

Frequently Asked Questions

Q. What is the most popular diamond shape?

A. The round brilliant diamond is by far the most popular diamond shape, accounting for approximately 75% of all diamonds sold. Its enduring popularity is due to its superior brilliance and sparkle, achieved through its 58 precisely arranged facets that maximize light return. Round diamonds are also the most versatile, complementing virtually any setting style from classic solitaires to modern halos. While they typically cost more per carat than fancy shapes due to higher rough diamond waste during cutting, many people consider the investment worthwhile for their timeless appeal and maximum sparkle.

Q. Which diamond shape looks the biggest?

A.  Marquise, oval, and pear shaped diamonds typically appear largest for their carat weight due to their elongated shapes and larger surface areas. The marquise shape is particularly size-efficient, as its elongated outline with pointed ends creates maximum surface area. Oval diamonds are also excellent for maximizing apparent size while offering a more traditional brilliant sparkle. Among square and rectangular shapes, emerald and radiant cuts can appear larger than princess cuts of the same weight due to their shallower depth and larger tables. Keep in mind that while these shapes maximize size appearance, round brilliants will still offer superior sparkle despite appearing slightly smaller.

Q. What diamond shape is best for small hands or short fingers?

A. Elongated diamond shapes like oval, pear, marquise, and emerald cuts are most flattering for small hands or short fingers because they create a lengthening visual effect. These shapes draw the eye vertically, making fingers appear longer and more slender. Oval diamonds are particularly popular for this purpose, offering both elongation and brilliant sparkle. The elongated cushion cut provides similar benefits with a softer, more romantic aesthetic. Conversely, wide shapes like round or square diamonds can make fingers appear shorter, though ultimately personal preference should guide your decision.

Q. Do certain diamond shapes cost more than others?

A. Yes, diamond shapes significantly impact price. Round brilliant diamonds are typically the most expensive per carat because cutting them from rough diamonds results in more material waste, sometimes up to 50-60% of the original stone. Fancy shapes (all non-round shapes) generally cost 10-30% less per carat than comparable round diamonds. Among fancy shapes, prices are relatively similar, though some like Asscher cuts may command premium pricing due to their specialized cutting requirements. Princess cuts are often among the most affordable fancy shapes because their cutting process wastes less rough diamond material. At Vero Diamonds we primarily work with lab-grown diamonds. The small percentage of natural diamonds we work with, the cost is dependent on the shape chosen.

Q. Which diamond shape is best for hiding inclusions?

A. Brilliant-cut diamonds like round, oval, cushion, radiant, and princess cuts are best for hiding inclusions because their numerous facets and complex light patterns help mask imperfections. The radiant cut is particularly effective due to its 70 facets and brilliant-style cutting. In contrast, step-cut diamonds like emerald and Asscher cuts have large, open facets that act like windows into the diamond, making inclusions much more visible. If you're choosing a step-cut shape, you'll typically need to select a higher clarity grade (VS2 or better) to ensure the diamond appears eye-clean. Working with high-quality materials and lab grown diamonds there are less inclusions to hide. Our minimum quality at Vero Diamonds is VVS2e where inclusions are not noticeable with the naked eye.

References

1. Gemological Institute of America (GIA). "Diamond Shape and Cutting Style." GIA.edu. Accessed 2025. gia.edu
2. American Gem Society (AGS). "Understanding Diamond Shapes." AmericanGemSociety.org. Accessed 2025. AmericanGemSociety.org
3. Tolkowsky, Marcel. "Diamond Design: A Study of the Reflection and Refraction of Light in a Diamond." E. & F.N. Spon, Ltd., 1919.
4. International Gemological Institute (IGI). "Diamond Grading Guide: Shape and Cut." IGI.org. Accessed 2025.  IGI.org
5. Asscher Diamond Company. "The History of the Asscher Cut." AssherDiamonds.com. Accessed 2025.  AssherDiamonds.com
6. Rapaport Diamond Report. "Diamond Shape Popularity Trends 2020-2024." Rapaport.com. Accessed 2024. Rapaport.com