Radiant Cut Diamond Size Chart

The radiant cut diamond is a stunning hybrid that blends the sparkle of a round cut with the sleek look of an emerald cut, making it a top choice for engagement rings. Its size and proportions greatly affect its beauty, balancing brilliance, and elegance while posing unique challenges for buyers.

Radiant Cut Diamond Size Chart

Round MM Size	Round Carat Weight
4mm.	0.25 ct.
5.0 mm.	0.50 ct.
5.75 mm.	0.75 ct.
6.5 mm.	1.00 ct.
6.8 mm.	1.25 ct.
7.3 mm.	1.50 ct.
7.75 mm.	1.75 ct.
8 mm.	2.00 ct.
8.7 mm.	2.50 ct.
9.1 mm.	3.00 ct.
9.75 mm.	3.50 ct.
10.25 mm.	4.00 ct.
10.75 mm.	4.50 ct.
11 mm.	5.00 ct.

Princess MM Size	Princess Carat Weight
3.25 mm.	0.25 ct.
4.5 mm.	0.50 ct.
5 mm.	0.75 ct.
5.5 mm.	1.00 ct.
6 mm.	1.25 ct.
6.5 mm.	1.50 ct.
6.75 mm.	1.75 ct.
7 mm.	2.00 ct.
7.5 mm.	2.50 ct.
8 mm.	3.00 ct.
8.5 mm.	3.50 ct.
8.75 mm.	4.00 ct.
9.25 mm.	4.50 ct.
9.5 mm.	5.00 ct.

Cushion MM Size	Cushion Carat Weight
3.25 mm.	0.25 ct.
4.9 mm.	0.50 ct.
5.25 mm.	0.75 ct.
5.5 mm.	1.00 ct.
6 mm.	1.25 ct.
6.5 mm.	1.50 ct.
6.75 mm.	1.75 ct.
7 mm.	2.00 ct.
7.5 mm.	2.50 ct.
8 mm.	3.00 ct.
8.5 mm.	3.50 ct.
9 mm.	4.00 ct.
9.3 mm.	4.50 ct.
9.5 mm.	5.00 ct.

Oval MM Size	Oval Carat Weight
5×3 mm.	0.25 ct.
6×4 mm.	0.50 ct.
7×5 mm.	0.75 ct.
7.7×5.7 mm.	1.00 ct.
8×6 mm.	1.25 ct.
8.5×6.5 mm.	1.50 ct.
9×6.5 mm.	1.75 ct.
9×7 mm.	2.00 ct.
10×8 mm.	2.50 ct.
12×8 mm.	3.00 ct.
12×8.5 mm.	3.50 ct.
12.5×8.5 mm.	4.00 ct.
12.75×8.5 mm.	4.50 ct.
12×10 mm.	5.00 ct.

Emerald MM Size	Emerald Carat Weight
4.30×3 mm.	0.25 ct.
6×4 mm.	0.50 ct.
6.5×4.5 mm.	0.75 ct.
7×5 mm.	1.00 ct.
7.3×5.3 mm.	1.25 ct.
7.5×5.5 mm.	1.50 ct.
8×6 mm.	1.75 ct.
8.5×6.5 mm.	2.00 ct.
9×7 mm.	2.50 ct.
9.3×7.5 mm.	3.00 ct.
9.75×7.7 mm.	3.50 ct.
10×8 mm.	4.00 ct.
10.5×8.5 mm.	4.50 ct.
11×9 mm.	5.00 ct.

Heart MM Size	Heart Carat Weight
4 mm.	0.25 ct.
5 mm.	0.50 ct.
6 mm.	0.75 ct.
6.5 mm.	1.00 ct.
7 mm.	1.25 ct.
7.5 mm.	1.50 ct.
7.7 mm.	1.75 ct.
8 mm.	2.00 ct.
8.5 mm.	2.50 ct.
9 mm.	3.00 ct.
10 mm.	3.50 ct.
10.5 mm.	4.00 ct.
11 mm.	4.50 ct.
11.5 mm.	5.00 ct.

Pear MM Size	Pear Carat Weight
5×3 mm.	0.25 ct.
6×4 mm.	0.50 ct.
7×5 mm.	0.75 ct.
7.7×5.7 mm.	1.00 ct.
8×6 mm.	1.25 ct.
8.5×6.5 mm.	1.50 ct.
10×6 mm.	1.75 ct.
9×7 mm.	2.00 ct.
10×8 mm.	2.50 ct.
12×8 mm.	3.00 ct.
12×9 mm.	3.50 ct.
14×8 mm.	4.00 ct.
14.5×9 mm.	4.50 ct.
15×9 mm.	5.00 ct.

Marquise MM Size	Marquise Carat Weight
6×3 mm.	0.25 ct.
8×4 mm.	0.50 ct.
9×4.5 mm.	0.75 ct.
10×5 mm.	1.00 ct.
11×5.5 mm.	1.25 ct.
12×6 mm.	1.50 ct.
12.5×6.25 mm.	1.75 ct.
13×6.5 mm.	2.00 ct.
14×7 mm.	2.50 ct.
15×7 mm.	3.00 ct.
15×8 mm.	3.50 ct.
16.5×8.25 mm.	4.00 ct.
16.75×8.5 mm.	4.50 ct.
17×8.5 mm.	5.00 ct.

Radiant MM Size	Radiant Carat Weight
4.3×3 mm.	0.25 ct.
6×4 mm.	0.50 ct.
6.5×4.5 mm.	0.75 ct.
7×5 mm.	1.00 ct.
7.3×5.5 mm.	1.25 ct.
7.5×5.8 mm.	1.50 ct.
8×6 mm.	1.75 ct.
8.2×6.2 mm.	2.00 ct.
9×7 mm.	2.50 ct.
9.5×7.5 mm.	3.00 ct.
10×8 mm.	3.50 ct.
10.2×8.2 mm.	4.00 ct.
10.5×8.5 mm.	4.50 ct.
11×9 mm.	5.00 ct.

Understanding Radiant Cut Proportions and Dimensions

The radiant cut diamond’s allure lies in its intricate proportions, which maximize sparkle while maintaining a sophisticated shape. A key factor to consider is the length-to-width ratio (L/W), which determines whether the diamond appears square or rectangular.

While square shapes often feel modern and symmetrical, rectangular ones exude elegance and elongation. However, achieving the perfect proportion involves tradeoffs. A higher L/W ratio might make a diamond look longer but could also impact its brilliance if not cut carefully.

Similarly, overly square proportions may reduce the diamond’s visual size. Understanding these factors is essential to select a radiant cut diamond that balances sparkle, size, and style according to personal preferences.

Credit: diamondsizecharts.com

Radiant Cut Diamond Size Chart by Carat and Dimensions

To help you visualize radiant cut diamond sizes, here’s a detailed size chart that breaks down carat weight, dimensions (in millimeters), and surface area. This chart provides a clear comparison, making it easier to choose the right diamond size for your needs.

When using the chart, remember that while larger carat weights offer more visual impact, they often come with tradeoffs. A heavier diamond may have greater depth, reducing its surface area and perceived size. On the other hand, a smaller carat weight with well-proportioned dimensions can appear larger than its actual weight.

By comparing carat weight with dimensions and surface area, you can make an informed decision that balances sparkle, size, and budget. Keep in mind that setting styles and personal preferences also play a significant role in how the diamond will look and feel.

Credit: www.brilliance.com

Tips for Choosing the Perfect Radiant Cut Diamond Size

Choosing the right radiant cut diamond involves balancing size, budget, and personal style. Start by considering the wearer’s finger shape and ring style. For smaller fingers, a rectangular radiant cut can create an elegant, elongating effect, while a square shape might suit wider fingers for a balanced look. Similarly, delicate settings enhance smaller diamonds, while bold settings can complement larger stones.

Budgeting plays a crucial role, and prioritizing cut quality over carat weight is essential. While a higher carat weight adds size, a poorly cut diamond may lack brilliance and appear dull. Instead, opt for a well-cut diamond that maximizes sparkle and face-up size, even if it means choosing a slightly smaller carat weight.

Ultimately, striking the right balance between these factors ensures you select a radiant cut diamond that not only fits your budget but also reflects your personal style beautifully.

Conclusion

Choosing the right radiant cut diamond size is crucial for your engagement ring. Refer to the size chart to make an informed decision that suits your style and budget. Remember, each diamond size has its unique charm, so pick the one that speaks to you.

FAQs

What Is The Best Size For A Radiant Cut Diamond?

The best size for a radiant cut diamond depends on personal preference and budget. Generally, a 1 to 2-carat radiant cut diamond is popular for engagement rings. However, the ideal size can vary based on individual style and setting choice.

What Size Is A 2ct Radiant Cut?

A 2ct radiant cut diamond is approximately 8mm in diameter. This elegant shape combines the brilliance of a round diamond with a unique, rectangular outline.

How Big Is A 2.5 Carat Radiant?

A 2. 5 carat radiant diamond is approximately 8. 5mm x 6. 5mm in size.