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3.0 Carat Cushionvs3.0 Carat Oval

DIAMOND SIZE & SHAPE COMPARISON TOOL

~ 8.0 mm

3 carat Cushion diamond

3.0

CUSHION

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17.9 mm

US Dime (17.9mm)

~ 11.2 mm

3 carat Oval diamond

3.0

OVAL

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Cushion vs Oval Comparison Analysis

When comparing a 3 carat Cushion to a 3 carat Oval, the 3 carat Oval appears visually larger. It has a face-up surface area that is approximately 14% larger than the 3 carat Cushion. The elegant elongated oval measures 11.2mm in length, creating a more elongated appearance compared to the romantic cushion cut with rounded corners at 8mm.

Detailed Measurements:

The 3 carat cushion diamond measures 8mm × 8mm, while the 3 carat oval measures 11.2mm × 8.3mm. The 3 carat oval covers approximately 66% of the width of an average finger (size 6.5), creating a substantial, eye-catching presence.

Shopping Considerations:

Beyond size, consider that cushion diamonds tend to have different brilliance patterns compared to oval 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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Diamond FAQ

The 4Cs are how all diamonds get graded: Cut, Color, Clarity, and Carat. Cut is how well it's shaped (this affects sparkle the most). Color goes from D (totally colorless) to Z (yellowish tint), though anything D through J looks white in a ring. Clarity is about tiny flaws inside—most are invisible without a jeweler's loupe, so VS1 or VS2 is plenty. Carat is just weight. Here's the trick: get an Excellent cut first, then aim for G-H color and VS2 clarity, and spend whatever's left on the biggest carat you can afford. Start your diamond search to compare options.