1.0 Carat Princessvs1.25 Carat Round

When comparing a 1 carat Princess to a 1.25 carat Round, the 1.25 carat Round appears visually larger. It has a face-up surface area that is approximately 20% larger than the 1 carat Princess. The classic round brilliant cut measures 6.8mm in length, creating a more elongated appearance compared to the modern square princess cut at 5.5mm.

Detailed Measurements:

The 1 carat princess diamond measures 5.5mm × 5.5mm, while the 1.25 carat round measures 6.8mm × 6.8mm. On an average finger (size 6.5), this diamond occupies about 40% of the finger width, offering a balanced and elegant look.

Shopping Considerations:

Beyond size, consider that princess diamonds tend to have different brilliance patterns compared to round cuts. Use the interactive visual tool above to see these diamonds side-by-side with a US dime for real-world scale reference. The measurements shown are based on well-cut diamonds with standard proportions.

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