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0.4ct Diamond (Marquise, 7.66×3.83mm, White) vs 1ct Diamond (Marquise, 10.38×5.19mm, White)


Quick summary: When looked from above (face-up position), 1ct Diamond (10.38×5.19mm, marquise cut) appears 84% larger than 0.4ct Diamond (7.66×3.83mm, marquise cut). See below how they compare side-by-side on a ring and finger.

0.4ct Diamond (marquise cut)
vs
 1ct Diamond (marquise cut)
white
 
white
7.66×3.83 mm 10.38×5.19 mm
actual size
Actual size of 0.4ct Diamond (marquise cut, 7.66×3.83mm, White color)   Actual size of 1ct Diamond (marquise cut, 10.38×5.19mm, White color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
White 0.4ct Diamond (marquise cut, 7.66×3.83mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
White 1ct Diamond (marquise cut, 10.38×5.19mm) on a right ring and finger
Your settings
Ring
 Gold
Skin tone
 Light
Ring diameter
 16.9 mm
Ring width
 3.0 mm
Finger length
 64 mm
Finger coverage
 23% vs 31%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 0.4ct Diamond Marquise (7.66×3.83mm, White) and 1ct Diamond Marquise (10.38×5.19mm, White) as they would appear on a ring and finger. Adjust the ring and finger size to get an idea of how these gemstones would look on your finger.

Where to buy?

For certified gemstones, high-end gemstone jewelry, and birthstone jewelry, see Blue Nile

Face-up Size

The face-up size depends on the shape of the gem, its weight and the proportions of the cut. Face-up area is a measure of the size of the gem when viewed from above (as set in a ring). It tells you how big the gem is at the girdle plane.


0.4 Ct Diamond (Marquise) 1 Ct Diamond (Marquise)
7.66×3.83 mm vs 10.38×5.19 mm
20.83 mm²   38.25 mm²
Face-up size outline for 1ct Diamond (10.38×5.19mm, marquise cut)
Face-up size outline for 0.4ct Diamond (7.66×3.83mm, marquise cut)
0.4ct Diamond Marquise (7.66×3.83mm)
1ct Diamond Marquise (10.38×5.19mm)
Difference: 84% (17.42 mm²)
1ct Diamond (Marquise, 10.38×5.19mm) has approx. 84% more face-up area than 0.4ct Diamond (Marquise, 7.66×3.83mm).


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