3.75 Carat Roundvs4.0 Carat Round

When comparing a 3.75 carat Round to a 4 carat Round, the visual size difference is minimal. Both diamonds occupy nearly the same surface area (within 4%), making them appear almost identical when viewed face-up. You gain approximately 0.2mm in width by choosing the 4 carat Round over the 3.75 carat version.

Detailed Measurements:

The 3.75 carat round diamond measures 10.1mm × 10.1mm, while the 4 carat round measures 10.3mm × 10.3mm. The 4 carat round covers approximately 61% of the width of an average finger (size 6.5), creating a substantial, eye-catching presence.

Shopping Considerations:

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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