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1.0 Carat Asschervs1.25 Carat Marquise

DIAMOND SIZE & SHAPE COMPARISON TOOL

~ 5.5 mm

1 carat Asscher diamond

1.0

ASSCHER

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17.9 mm

US Dime (17.9mm)

~ 11.0 mm

1.25 carat Marquise diamond

1.25

MARQUISE

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Find the Perfect 1 Carat Asscher Diamond

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Find the Perfect 1.25 Carat Marquise Diamond

Asscher vs Marquise Comparison Analysis

When comparing a 1 carat Asscher to a 1.25 carat Marquise, the 1.25 carat Marquise appears visually larger. It has a face-up surface area that is approximately 57% larger than the 1 carat Asscher. The dramatic elongated marquise measures 11mm in length, creating a more elongated appearance compared to the vintage square asscher cut at 5.5mm.

Detailed Measurements:

The 1 carat asscher diamond measures 5.5mm × 5.5mm, while the 1.25 carat marquise measures 11mm × 5.5mm. The 1.25 carat marquise covers approximately 65% of the width of an average finger (size 6.5), creating a substantial, eye-catching presence.

Shopping Considerations:

Beyond size, consider that asscher diamonds tend to have different brilliance patterns compared to marquise 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.