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1.23ct Diamond (Round, 6.96×6.96mm, White) vs 0.8ct Diamond (Marquise, 9.64×4.82mm, White)


Quick summary: When looked from above (face-up position), 1.23ct Diamond (6.96×6.96mm, round cut) appears 15% larger than 0.8ct Diamond (9.64×4.82mm, marquise cut). See below how they compare side-by-side on a ring and finger.

1.23ct Diamond (round cut)
vs
 0.8ct Diamond (marquise cut)
white
 
white
6.96×6.96 mm 9.64×4.82 mm
actual size
Actual size of 1.23ct Diamond (round cut, 6.96×6.96mm, White color)   Actual size of 0.8ct Diamond (marquise cut, 9.64×4.82mm, White color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
White 1.23ct Diamond (round cut, 6.96×6.96mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
White 0.8ct Diamond (marquise cut, 9.64×4.82mm) 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
 42% vs 29%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 1.23ct Diamond Round (6.96×6.96mm, White) and 0.8ct Diamond Marquise (9.64×4.82mm, 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.


1.23 Ct Diamond (Round) 0.8 Ct Diamond (Marquise)
6.96×6.96 mm vs 9.64×4.82 mm
38.05 mm²   32.99 mm²
Face-up size outline for 1.23ct Diamond (6.96×6.96mm, round cut)
Face-up size outline for 0.8ct Diamond (9.64×4.82mm, marquise cut)
1.23ct Diamond Round (6.96×6.96mm)
0.8ct Diamond Marquise (9.64×4.82mm)
Difference: 15% (5.06 mm²)
1.23ct Diamond (Round, 6.96×6.96mm) has approx. 15% more face-up area than 0.8ct Diamond (Marquise, 9.64×4.82mm).


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