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Diamond Engagement Rings

Oval-Cut Diamonds Guide: Everything to Know!

Oval-cut diamonds are a modified brilliant-cut diamond shape that combines the elongated shape of a marquise cut with the brilliance of a round cut. This unique shape has been around since the 1300s but was perfected in the 1960s by a Russian diamond cutter named Lazare Kaplan. In recent years, oval-cut diamonds have gained popularity among celebrities and consumers alike, thanks to their elegant and timeless appearance.

Characteristics of Oval Cut Diamonds

Oval-cut diamonds are a unique choice that combines the brilliance of a round cut with the elongated shape of a marquise or pear cut. They have 58 facets, just like round brilliants, which gives them exceptional fire and sparkle. One of the most appealing aspects of oval cuts is the variety of shapes available, ranging from elongated to more rounded.

The length-to-width ratio of an oval-cut diamond can vary from 1.30 to 1.50, with most people preferring ratios between 1.35 and 1.45. A longer, narrower oval can create a more slender appearance, while a shorter, wider oval may offer a bolder look.

Lab Diamond Rings

When examining an oval-cut diamond, pay attention to the bow-tie effect, which is a dark area that can appear across the center of the stone. A well-cut oval diamond will have a minimal bow-tie effect, ensuring that the stone's brilliance is not overshadowed. Additionally, look for good symmetry, with the pointed ends aligning and the sides being uniform and smooth.

Choosing the perfect oval-cut diamond ultimately comes down to personal preference and the appeal of the specific stone. Understanding the characteristics and variations of oval cuts can help you make an informed decision when selecting a diamond for your jewelry piece.

Pros and Cons of Oval Cut Diamonds

When considering an oval-cut diamond, it's essential to weigh the advantages and disadvantages to determine if it's the right choice for you.


Elongating effect on fingers The elongated shape of oval-cut diamonds can create the illusion of longer, more slender fingers, making them appear more elegant and graceful.

Durability The rounded corners of oval-cut diamonds make them less prone to chipping or breaking compared to shapes with pointed edges, ensuring long-lasting wear.

Larger appearance Oval-cut diamonds often appear larger than round diamonds of the same carat weight due to their elongated shape, allowing you to maximize perceived size while staying within your budget.
Versatility Oval-cut diamonds are incredibly versatile and can be incorporated into a wide range of settings and styles, from classic solitaires to modern halo designs.


Bow-tie effect Some oval-cut diamonds may exhibit a bow-tie effect, which is a dark area that appears across the center of the stone. To minimize this, choose a well-cut oval diamond and review it closely before purchasing.

Overwhelming choices The vast array of oval-cut diamond proportions and shapes available can make the selection process challenging. Focus on the diamond's overall appearance and choose the one that appeals to you most.
Color visibility Oval-cut diamonds, particularly in larger sizes, may show more color than other diamond shapes. To counteract this, opt for a higher color grade or consider setting your diamond in a yellow or rose gold band.This choice of metal can significantly impact the overall appearance of your gem, a concept elaborated in What Is the Best Metal for Diamond Setting? 2024 Secret Revealed."

Evaluating Oval Cut Diamonds: The 4Cs

When evaluating any diamond, including oval-cut diamonds, it's essential to consider the 4Cs: Cut, Clarity, Color, and Carat Weight.


Cut is the most important factor in determining a diamond's beauty and brilliance. However, the GIA does not provide an overall cut grade for oval-cut diamonds. Instead, focus on factors such as polish, symmetry, length-to-width ratio, depth percentage, and table percentage to assess the quality of the cut.


Oval-cut diamonds are good at hiding inclusions and blemishes due to their facet pattern. As a result, you may be able to choose a lower clarity grade while still maintaining an eye-clean appearance.


Oval-cut diamonds may show more color than other shapes, particularly in larger sizes. If you prefer a colorless appearance, consider choosing a higher color grade.

Carat Weight

Keep in mind that carat refers to the diamond's weight, not its size. However, due to their elongated shape, oval-cut diamonds often appear larger than round diamonds of the same carat weight.

Oval-Cut vs. Round Cut Diamonds

When choosing between an oval-cut and a round brilliant-cut diamond, consider their similarities and differences. Both shapes offer exceptional brilliance and a timeless appearance, making them popular choices for engagement rings and other jewelry.

The main difference is their shape. Round brilliant-cut diamonds are perfectly circular, while oval-cut diamonds have an elongated shape with pointed ends. This elongated shape can create a flattering illusion of longer, more slender fingers.

Another factor to consider is the bow-tie effect, which is more prominent in oval-cut diamonds. This effect appears as a dark area across the center of the stone and can sometimes detract from its beauty. Round brilliant-cut diamonds do not have this effect due to their symmetrical shape.

Oval-cut diamonds are generally less expensive than round brilliant-cut diamonds of the same carat weight, as they retain more of the rough stone during the cutting process.

Ultimately, the choice between an oval-cut and a round brilliant-cut diamond comes down to personal preference. Consider your style, budget, and the desired appearance on your finger when making your decision.

BrilliStar's Oval Cut Diamond Jewelry Showcase

When choosing oval-cut diamond jewelry, consider these two elegant options from BrilliStar that beautifully display the brilliance and unique shape of the diamond.

The Lab Grown Diamond Snug Double-Claw Engagement Ring features a timeless solitaire design with double-claw prongs securely holding the center oval-cut diamond. The slender band enhances the sleek appearance, allowing the diamond to be the focal point. This ring is crafted with IGI-certified lab-grown diamonds, ensuring quality and authenticity.

Lab Grown Diamond Snug Double-Claw Engagement Ring

For a more understated look, the Subtle Oval Colorless (D-F) Lab Grown Diamond Solitaire Pendant is a perfect choice. This pendant features a thin chain with a single, captivating oval-cut diamond, available in various carat weights from 0.5 to 1 carat. The IGI-certified lab-grown diamond boasts an impressive average color and clarity of D-F and VS-VVS, respectively.

Subtle Oval Colorless (D-F) Lab Grown Diamond Solitaire Pendant

Both BrilliStar pieces showcase the beauty of oval-cut diamonds in different ways, making them versatile options for any jewelry collection.

hoose the one that best suits your style and preferences!

Price and Value of Oval Cut Diamonds

Oval-cut diamonds are often less expensive than round brilliant-cut diamonds of the same carat weight, as the oval shape allows for more of the rough diamond to be utilized during the cutting process, resulting in less waste and a lower overall cost.

To find the best value for your budget, consider the 4Cs (Cut, Clarity, Color, and Carat Weight) and prioritize the factors that matter most to you. For example, you may choose a slightly lower color or clarity grade to afford a larger carat weight while still achieving an eye-clean, visually appealing diamond.

When balancing your budget with the desired characteristics of your oval-cut diamond, prioritize cut quality, as it has the most significant impact on the diamond's beauty and brilliance. Additionally, take advantage of the oval-cut diamond's elongated shape, which can make it appear larger than a round diamond of the same carat weight.

By carefully considering these factors and working with a trusted jeweler, you can find an oval-cut diamond that offers the best combination of beauty, quality, and value to suit your preferences and budget.

Choose an Oval Cut Diamond for Lasting Brilliance

Oval-cut diamonds are a stunning and versatile choice for engagement rings and other jewelry. Their unique shape, brilliance, and elongating effect on fingers make them a popular choice among consumers and celebrities alike. When considering an oval-cut diamond, work with a knowledgeable jeweler to find a stone that balances your personal preferences with the 4Cs and your budget. With their timeless beauty and adaptability to various styles, oval-cut diamonds are sure to remain a beloved choice for years to come.

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