Sunday, July 7, 2024

How Much Does a One Carat Princess Cut Diamond Cost?

The allure of a princess cut diamond lies in its unique square shape, brilliant sparkle, and modern appeal. This cut has gained immense popularity, especially in engagement rings, due to its contemporary elegance and ability to maximize the diamond’s brilliance. However, understanding the cost of a one carat princess cut diamond involves several factors, including quality, color, clarity, and certification. This comprehensive guide will explore the various elements influencing the price of a princess cut diamond, helping potential buyers make an informed decision.

Understanding the Princess Cut Diamond

The princess cut diamond, known for its distinctive square or rectangular shape with pointed corners, was first created in the 1960s. Its brilliance rivals that of the traditional round brilliant cut, making it a popular choice for those seeking a modern yet dazzling diamond. The princess cut diamond’s unique faceting pattern, which includes 58 to 76 facets, enhances its sparkle and hides inclusions well, making it an attractive option for many.

Factors Affecting the Cost of a Princess Cut Diamond

Carat Weight

The carat weight of a diamond significantly impacts its price. A one carat princess cut diamond is a popular choice due to its balance between size and cost. As the carat weight increases, the price per carat also rises, but the price doesn’t scale linearly. A two carat princess cut diamond can cost much more than double the price of a one carat due to its rarity and the increased demand for larger stones.

Cut Quality

The cut quality of a princess cut diamond is crucial in determining its overall brilliance and appeal. Unlike round diamonds, princess cut diamonds do not have standardized cut grades from gemological institutes like GIA. However, a well-cut princess cut diamond will display excellent light performance, with optimal brightness, fire, and scintillation. Poorly cut diamonds may appear dull and lackluster, even if they have high clarity and color grades.

Color Grade

The color grade of a princess cut diamond refers to the presence of any color in the diamond. The Gemological Institute of America (GIA) grades diamonds on a scale from D (colorless) to Z (light yellow or brown). For a princess cut diamond, a color grade between D and H is generally preferred, as the cut tends to retain more color compared to round diamonds. Colorless or near-colorless diamonds are more desirable and thus command higher prices.

Clarity Grade

The clarity grade of a princess cut diamond assesses the presence of internal inclusions and external blemishes. The GIA clarity scale ranges from Flawless (FL) to Included (I). Because the faceting of a princess cut diamond can hide inclusions better than some other cuts, buyers might opt for diamonds with slightly lower clarity grades, such as VS1 or VS2, without compromising on the diamond’s appearance. Higher clarity grades, like IF (Internally Flawless) or VVS (Very Very Slightly Included), are more expensive.


Certification from a reputable gemological laboratory, such as the GIA or the American Gem Society (AGS), provides an unbiased assessment of the diamond’s quality. A certified one carat princess cut diamond typically costs more than a non-certified diamond due to the assurance of its quality and authenticity. Certificates detail the diamond’s 4Cs (carat, cut, color, clarity) and provide peace of mind for buyers.

Price Range for a One Carat Princess Cut Diamond

The price of a one carat princess cut diamond can vary widely based on the factors mentioned above. On average, the cost ranges from $2,500 to $10,000 or more. Below are some examples of price variations based on different quality grades:

Lower Quality: A one carat princess cut diamond with lower color (J-K) and clarity grades (SI2-I1) may cost between $2,500 and $4,000.

Mid-Range Quality: A one carat princess cut diamond with mid-range color (G-H) and clarity grades (VS2-SI1) typically costs between $4,000 and $7,000.

High Quality: A one carat princess cut diamond with high color (D-F) and clarity grades (IF-VVS2) can cost between $7,000 and $10,000 or more.

Comparing Princess Cut Diamonds to Other Cuts

Round Brilliant Cut

The round brilliant cut is the most popular diamond shape and is often used as a benchmark for comparing other cuts. While a one carat princess cut diamond is generally less expensive than a one carat round brilliant cut diamond, the price difference is due to the round cut’s higher demand and superior light performance.

Cushion Cut

Cushion cut diamonds, with their rounded corners and larger facets, are another popular choice. The price of a one carat cushion cut diamond is similar to that of a princess cut diamond, though cushion cuts tend to retain color better and may require a higher color grade.

Emerald Cut

Emerald cut diamonds have a rectangular shape with step-cut facets, giving them a distinctive look. The price of a one carat emerald cut diamond is often lower than that of a princess cut diamond, but the emerald cut’s larger facets make inclusions more visible, necessitating higher clarity grades.

Setting and Its Impact on Cost

The setting of a princess cut diamond significantly influences its overall cost. Popular settings for princess cut diamonds include solitaire, halo, and three-stone designs. The choice of metal (white gold, yellow gold, platinum) and the presence of additional diamonds or gemstones can also affect the price. For instance, a halo setting with smaller diamonds surrounding the center stone will be more expensive than a simple solitaire setting.

Solitaire Setting

A solitaire setting, which features a single princess cut diamond, is a classic and elegant choice. This setting allows the diamond to be the focal point and typically costs less than more elaborate designs. The price of a one carat princess cut diamond in a solitaire setting ranges from $3,000 to $12,000, depending on the quality of the diamond and the choice of metal.

Halo Setting

A halo setting, which surrounds the center princess cut diamond with smaller diamonds, enhances the overall sparkle and appearance of the ring. This setting is popular for its added brilliance and can make the center diamond appear larger. The cost of a one carat princess cut diamond in a halo setting ranges from $4,000 to $15,000 or more, depending on the total carat weight of the halo diamonds and the metal used.

Three-Stone Setting

A three-stone setting, featuring a princess cut diamond flanked by two smaller diamonds, symbolizes the past, present, and future. This setting is elegant and meaningful, often chosen for its symbolic value. The price of a one carat princess cut diamond in a three-stone setting ranges from $5,000 to $20,000, depending on the quality of the center and side stones and the choice of metal.

Where to Buy a Princess Cut Diamond

Jewelry Stores

Traditional jewelry stores offer the advantage of seeing and comparing diamonds in person. Reputable stores provide certified diamonds and professional guidance, ensuring a reliable purchase. However, prices in physical stores may be higher due to overhead costs.

Online Retailers

Online retailers, such as Blue Nile, James Allen, and Brilliant Earth, offer a wide selection of certified princess cut diamonds at competitive prices. The convenience of online shopping and detailed images and videos of the diamonds allow buyers to make informed decisions. Additionally, online retailers often provide customization options for settings and financing plans.

Wholesale Diamond Dealers

Wholesale diamond dealers offer diamonds at lower prices by cutting out the middleman. Purchasing from a wholesale dealer requires some knowledge of diamonds and the 4Cs to ensure a good deal. While the prices are often lower, the selection may be limited compared to retail stores.

See Also: Are Polki Diamonds Valuable?

Tips for Buying a Princess Cut Diamond

Set a Budget

Determine a budget before starting your search for a princess cut diamond. Knowing your price range helps narrow down options and prevents overspending. Consider both the diamond and the setting in your budget.

Prioritize the 4Cs

Decide which of the 4Cs (carat, cut, color, clarity) is most important to you. For a princess cut diamond, prioritizing cut quality ensures maximum brilliance. Balance the other Cs based on personal preferences and budget.

Choose a Reputable Seller

Buy from a reputable seller who offers certified diamonds. Certification from organizations like GIA or AGS provides assurance of the diamond’s quality. Read reviews and ask for recommendations to find trusted sellers.

Inspect the Diamond

If possible, inspect the diamond in person or request detailed images and videos if buying online. Look for a diamond with a good balance of the 4Cs and ensure it meets your expectations for sparkle and clarity.

Consider Customization

Many retailers offer customization options for settings. Choose a setting that complements the princess cut diamond and matches your style. Customizing the setting allows for a unique and personalized ring.


The cost of a one carat princess cut diamond varies based on several factors, including carat weight, cut quality, color grade, clarity grade, and certification. On average, prices range from $2,500 to $10,000 or more. Comparing different cuts, considering the setting, and choosing a reputable seller are essential steps in finding the perfect princess cut diamond. By understanding the factors influencing the price and following buying tips, you can make an informed and satisfying purchase of a one carat princess cut diamond.

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